php多文件上传,静态资源文件自动压缩并替换成压缩版本

静态能源文件自动削减并替换到压缩版本(大型网址优化手艺)

2015/11/26 · HTML5 ·
静态能源

原稿出处: Kelly   

这一遍,作者总结和分享一项大型网址优化本领,那便是在档期的顺序中自动削减静态能源文件(css、js),并让网址自行加载压缩后的财富文件。当然,那项本领在雅虎35条前端优化提议里也是有记载,但它那只是给出贰个反驳的方案而已,何况利用的是外部压缩工具去减弱,而在自己的品种中,是直接通过投机的前后相继自动化去减弱全数css、js文件,然后让页面一向加载所收缩后的能源,接下去直接进去正题。

此番试验应用的是PHP脚本语言,版本是PHP5.6,是在LINUX下搭建的条件(英特网搭建无论是搭建LAMP依旧LNMP的课程都精彩纷呈杂乱无章,后一次作者会总计和享受怎么样在LINUX下搭建服务器蒙受的博文,並且搭建的蒙受必得三遍性搭建成功的)。所采用的框架是CI框架,所接纳的模板是斯玛特y模板引擎。当然了,那几个只是笔者所运用的条件而已,假若你是PHP开采者,假若你要测量检验下此次实验,那么,小编建议你的PHP版本选择5.4之上,至于框架用什么样都以足以的。而只要您不是PHP开拓者(你是JSP可能是ASP开拓者大概是其余开拓者),那么您领会好这一思路后,完全能够在和睦熟知的言语里举行试验测量检验。

一、原理图

率先作者画一张思路图,便于大家先清楚。

首先是能源收缩原理图:

图片 1

跟着是财富文件替换的规律图:

图片 2

假诺我们认真领会并且看懂这两张原理图的话,基本上也就通晓了自己所享用的思绪。要是照旧不可能通晓的话,接下去笔者会结合代码,对上述原理图的每一步实行详细讲明。

二、思路详细解析

1.首先是调用该滑坡的办法,你能够把该办法放在网站所要加载的公共类的地点,举例每一次访问网址都会调用该滑坡方法开展削减。当然,那些只是在支付情形才会每趟都调用,假诺是线上的条件,在您的网址发叁回新本子的时候,调用三遍用来生成压缩版的静态财富就足以了。

class MY_Controller extends CI_Controller { public function
__construct() { parent::__construct(); //压缩jscss财富文件
$this->compressResHandle(); } /** * 压缩js、css能源文件(优化) *
@return [type] [description] */ private function
compressResHandle() { $this->load->library(‘ResMinifier’);
//压缩钦点文件夹下的财富文件 $this->resminifier->compressRes(); }
}

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class MY_Controller extends CI_Controller {
    public function __construct() {
        parent::__construct();
 
        //压缩jscss资源文件
        $this->compressResHandle();
    }
    /**
     * 压缩js、css资源文件(优化)
     * @return [type] [description]
     */
    private function compressResHandle() {
        $this->load->library(‘ResMinifier’);
        //压缩指定文件夹下的资源文件
        $this->resminifier->compressRes();
    }
}

2.接着就调用了 ResMinifier类里的 compressRes方法。在这里小编先附上
ResMinifier那么些类的代码,然后方便一步步进展分析讲明

PHP

<?php defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
/** * 能源压缩类 */ class ResMinifier { /** 要求减弱的财富目录*/
public $compressResDir = [‘css’, ‘js’]; /**
忽略压缩的路径,比方此处是js/icon起先的路径忽略压缩*/ public
$compressResIngorePrefix = [‘js/icon’]; /** 资源根目录*/ public
$resRootDir; /** 财富版本文件路线*/ private $resStatePath; public
function __construct() { $this->resRootDir = WEBROOT . ‘www/’;
$this->resStatePath = WEBROOT . ‘www/resState.php’; } public function
compressRes() { //获取寄放版本的能源文件 $resState =
$this->getResState(); $count = 0; //初阶遍历必要减小的财富目录
foreach ($this->compressResDir as $resDir) { foreach (new
RecursiveIteratorIterator(new
RecursiveDirectoryIterator($this->resRootDir . $resDir ,
FilesystemIterator::SKIP_DOTS)) as $file) { //获取该财富文件的相对路线$filePath = str_replace(‘\’, ‘/’, $file->getReal帕特h());
//获取文件相对路线 $object = substr($file帕特h,
strlen($this->resRootDir)); //总计文件的本子号 $state =
$this->_getResStateVersion($filePath); //获取文件的多少个参数值 if
(true !== $this->getObjectInfo($object, $minObject, $needCompress,
$state, $extension)) { continue; } //压缩文件的相对路线 $minFilePath =
str_replace(‘\’, ‘/’, $this->resRootDir. $minObject);
//************此处p推断是最首要部分之一*****************//
//决断文件是或不是留存且早就改成过 if (isset($resState[$object]) &&
$resState[$object] == $state && isset($resState[$minObject]) &&
file_exists($minFilePath)) { continue; } //确认保障/www/min/目录可写
$this->_ensureWritableDir(dirname($minFilePath)); if ($needCompress)
{ $this->compressResFileAndSave($filePath, $minFilePath); } else {
copy($filePath, $minFilePath); } $resState[$object] = $state;
$resState[$minObject] = ”; $count++; if ($count == 50) {
$this->_saveResState($resState); $count = 0; } } } if($count)
$this->_saveResState($resState); } public function
getObjectInfo($object, &$minObject, &$needCompress, &$state,
&$extension) { //获取能源相对路线 $filePath = $this->resRootDir .
$object; //判断能源是或不是留存 if (!file_exists($filePath)) return
“能源文件不设有{$filePath}”; //版本号 $state = $this->
_getResStateVersion($filePath); //文件名后缀 $extension =
pathinfo($filePath, PATHINFO_EXTENSION); //是不是要削减 $needCompress =
true; //判定财富文件是或不是是以 .min.css或许.min.js结尾的
//此类结尾日常都以已减弱过,比方jquery.min.js,就无须再压缩了 if
(str_end_with($object, ‘.min.’.$extension, true)) {
//压缩后的财富贮存路线,放在 /www/min/ 目录下 $minObject =
‘min/’.substr($object, 0, strlen($object) – strlen($extension) – 4) .
$state .’.’. $extension; $needCompress = false; } else if
(in_array($extension, $this->compressResDir)) {
//此处是急需收缩的文件目录 $minObject = ‘min/’.substr($object, 0,
strlen($object) – strlen($extension)) . $state . ‘.’ . $extension;
//看看是或不是是忽略的门径前缀 foreach ($this->compressResIngorePrefix as
$v) { if (str_start_with($object, $v, true)) { $needCompress = false;
} } } else { $minObject = ‘min/’.$object; $needCompress = false; }
return true; } /** * 获取存放财富版本的文本 * 它是坐落一个数组里 *
$resState = array( * ‘文件路线’ => ‘对应的本子号’, * ‘文件路径’
=> ‘对应的本子号’, * ‘文件路线’ => ‘对应的版本号’, * ); *
@return [type] [description] */ public function getResState() { if
(file_exists($this->resStatePath)) { require $this->resStatePath;
return $resState; } return []; } /** *
总计文件的本子号,这么些是依照测算文件MD5散列值获得版本号 *
只要文件内容退换了,所总括获得的散列值就能够不一致 *
用于决断财富文件是或不是有退换过 * @param [type] $filePath
[description] * @return [type] [description] */ public function
_getResStateVersion($filePath) { return
base_convert(crc32(md5_file($filePath)), 10, 36); } /** *
确认保证目录可写 * @param [type] $dir [description] * @return [type]
[description] */ private function _ensureWritableDir($dir) { if
(!file_exists($dir)) { @mkdir($dir, 0777, true); @chmod($dir, 0777); }
else if (!is_writable($dir)) { @chmod($dir, 0777); if
(!is_writable($dir)) { show_error(‘目录’.$dir.’不可写’); } } } /**
* 将滑坡后的能源文件写入到/www/min/下去 * @param [type] $filePath
[description] * @param [type] $minFilePath [description] *
@return [type] [description] */ private function
compressResFileAndSave($filePath, $minFilePath) { if
(!file_put_contents($minFilePath,
$this->compressResFile($filePath))) {
//$CI->exceptions->show_exception(“写入文件{$minFilePath}退步”);
show_error(“写入文件{$minFilePath}失败”, -1); } } /** * 压缩能源文件
* @param [type] $filePath [description] * @return [type]
[description] */ private function compressResFile($filePath) {
$extension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION)); if
($extension === ‘js’) { require_once ‘JShrink/Minifier.php’; return
JShrinkMinifier::minify(file_get_contents($filePath)); } else if
($extension ===’css’) { $content = file_get_contents($filePath);
$content =
preg_replace(‘!/*[^*]**+([^/][^*]**+)*/!’, ”,
$content); $content = str_replace([“rn”, “r”, “n”], ”,
$content); $content = preg_replace(‘/([{}),;:>])s+/’, ‘$1’,
$content); $content = preg_replace(‘/s+([{}),;:>])/’, ‘$1’,
$content); $content = str_replace(‘;}’, ‘}’, $content); return
$content; } else {
//$CI->exceptions->show_exception(“不帮助压缩{extension}文件[$filePath]”);
show_error(“不帮忙压缩{extension}文件[$filePath]”, -1); } } private
function _saveResState($resState) { ksort($resState); $content =
“<?phpnn$resState = array(n”; foreach ($resState as $k =>
$v) { $content .= “t ‘$k’ => ‘$v’,n”; } $content .= “);nn”;
file_put_contents($this->resStatePath, $content); } } 点击打开财富压缩类

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<?php
defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
/**
* 资源压缩类
*/
class ResMinifier {
    /** 需要压缩的资源目录*/
    public $compressResDir = [‘css’, ‘js’];
    /** 忽略压缩的路径,例如此处是js/icon开头的路径忽略压缩*/
    public $compressResIngorePrefix = [‘js/icon’];
    /** 资源根目录*/
    public $resRootDir;
    /** 资源版本文件路径*/
    private $resStatePath;
 
    public function __construct() {
        $this->resRootDir = WEBROOT . ‘www/’;
        $this->resStatePath = WEBROOT . ‘www/resState.php’;
    }
 
    public function compressRes() {
        //获取存放版本的资源文件
        $resState = $this->getResState();
        $count = 0;
 
        //开始遍历需要压缩的资源目录
        foreach ($this->compressResDir as $resDir) {
            foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($this->resRootDir . $resDir , FilesystemIterator::SKIP_DOTS)) as $file) {
                //获取该资源文件的绝对路径
                $filePath = str_replace(‘\’, ‘/’, $file->getRealPath());
                //获取文件相对路径
                $object = substr($filePath, strlen($this->resRootDir));
                //计算文件的版本号
                $state = $this->_getResStateVersion($filePath);
 
                //获取文件的几个参数值
                if (true !== $this->getObjectInfo($object, $minObject, $needCompress, $state, $extension)) {
                    continue;
                }
 
                //压缩文件的绝对路径
                $minFilePath = str_replace(‘\’, ‘/’, $this->resRootDir. $minObject);
 
                //************此处p判断是最重要部分之一*****************//
                //判断文件是否存在且已经改动过
                if (isset($resState[$object]) && $resState[$object] == $state && isset($resState[$minObject]) && file_exists($minFilePath)) {
                    continue;
                }
 
                //确保/www/min/目录可写
                $this->_ensureWritableDir(dirname($minFilePath));
 
                if ($needCompress) {
                    $this->compressResFileAndSave($filePath, $minFilePath);
                } else {
                    copy($filePath, $minFilePath);
                }
 
                $resState[$object] = $state;
                $resState[$minObject] = ”;
                $count++;
 
                if ($count == 50) {
                    $this->_saveResState($resState);
                    $count = 0;
                }
 
            }
        }
        if($count) $this->_saveResState($resState);
    }
 
    public function getObjectInfo($object, &$minObject, &$needCompress, &$state, &$extension) {
        //获取资源绝对路径
        $filePath = $this->resRootDir . $object;
        //判断资源是否存在
        if (!file_exists($filePath)) return "资源文件不存在{$filePath}";
        //版本号
        $state = $this-> _getResStateVersion($filePath);
        //文件名后缀
        $extension = pathinfo($filePath, PATHINFO_EXTENSION);
        //是否要压缩
        $needCompress = true;
 
        //判断资源文件是否是以 .min.css或者.min.js结尾的
        //此类结尾一般都是已压缩过,例如jquery.min.js,就不必再压缩了
        if (str_end_with($object, ‘.min.’.$extension, true)) {
            //压缩后的资源存放路径,放在 /www/min/ 目录下
            $minObject = ‘min/’.substr($object, 0, strlen($object) – strlen($extension) – 4) . $state .’.’. $extension;
            $needCompress = false;
        } else if (in_array($extension, $this->compressResDir)) {
            //此处是需要压缩的文件目录
            $minObject = ‘min/’.substr($object, 0, strlen($object) – strlen($extension)) . $state . ‘.’ . $extension;
            //看看是否是忽略的路径前缀
            foreach ($this->compressResIngorePrefix as $v) {
                if (str_start_with($object, $v, true)) {
                    $needCompress = false;
                }
            }
        } else {
            $minObject = ‘min/’.$object;
            $needCompress = false;
        }
        return true;
    }
 
    /**
     * 获取存放资源版本的文件
     * 它是放在一个数组里
     * $resState = array(
     *         ‘文件路径’ => ‘对应的版本号’,
     *         ‘文件路径’ => ‘对应的版本号’,
     *         ‘文件路径’ => ‘对应的版本号’,
     *     );
     * @return [type] [description]
     */
    public function getResState() {
        if (file_exists($this->resStatePath)) {
            require $this->resStatePath;
            return $resState;
        }
        return [];
    }
 
    /**
     * 计算文件的版本号,这个是根据计算文件MD5散列值得到版本号
     * 只要文件内容改变了,所计算得到的散列值就会不一样
     * 用于判断资源文件是否有改动过
     * @param  [type] $filePath [description]
     * @return [type]           [description]
     */
    public function _getResStateVersion($filePath) {
        return base_convert(crc32(md5_file($filePath)), 10, 36);
    }
 
    /**
     * 确保目录可写
     * @param  [type] $dir [description]
     * @return [type]      [description]
     */
    private function _ensureWritableDir($dir) {
        if (!file_exists($dir)) {
            @mkdir($dir, 0777, true);
            @chmod($dir, 0777);
        } else if (!is_writable($dir)) {
            @chmod($dir, 0777);
            if (!is_writable($dir)) {
                show_error(‘目录’.$dir.’不可写’);
            }
        }
    }
 
    /**
     * 将压缩后的资源文件写入到/www/min/下去
     * @param  [type] $filePath    [description]
     * @param  [type] $minFilePath [description]
     * @return [type]              [description]
     */
    private function compressResFileAndSave($filePath, $minFilePath) {
        if (!file_put_contents($minFilePath, $this->compressResFile($filePath))) {
 
            //$CI->exceptions->show_exception("写入文件{$minFilePath}失败");
            show_error("写入文件{$minFilePath}失败", -1);
        }
    }
 
    /**
     * 压缩资源文件
     * @param  [type] $filePath [description]
     * @return [type]           [description]
     */
    private function compressResFile($filePath) {
        $extension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
        if ($extension === ‘js’) {
            require_once ‘JShrink/Minifier.php’;
            return JShrinkMinifier::minify(file_get_contents($filePath));
        } else if ($extension ===’css’) {
            $content = file_get_contents($filePath);
            $content = preg_replace(‘!/*[^*]**+([^/][^*]**+)*/!’, ”, $content);
            $content = str_replace(["rn", "r", "n"], ”, $content);
            $content = preg_replace(‘/([{}),;:>])s+/’, ‘$1’, $content);
            $content = preg_replace(‘/s+([{}),;:>])/’, ‘$1’, $content);
            $content = str_replace(‘;}’, ‘}’, $content);
            return $content;
        } else {
            //$CI->exceptions->show_exception("不支持压缩{extension}文件[$filePath]");
            show_error("不支持压缩{extension}文件[$filePath]", -1);
 
        }
    }
 
    private function _saveResState($resState) {
        ksort($resState);
        $content = "<?phpnn$resState = array(n";
        foreach ($resState as $k => $v) {
            $content .= "t ‘$k’ => ‘$v’,n";
        }
        $content .= ");nn";
        file_put_contents($this->resStatePath, $content);
    }
 
}
 
点击打开 资源压缩类

万事类超越十分之五代码笔者都加了批注,方便我们急忙精通。这里自身也会对每一行代码实行分解。

(1)

PHP

/** 需求收缩的能源目录*/ public $compressResDir = [‘css’, ‘js’];
/** 忽略压缩的门径,举例此处是js/icon伊始的门路忽略压缩*/ public
$compressResIngorePrefix = [‘js/icon’]; /** 能源根目录*/ public
$resRootDir; /** 能源版本文件路线*/ private $resStatePath; public
function __construct() { $this->resRootDir = WEBROOT . ‘www/’;
$this->resStatePath = WEBROOT . ‘www/resState.php’; }

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/** 需要压缩的资源目录*/
    public $compressResDir = [‘css’, ‘js’];
    /** 忽略压缩的路径,例如此处是js/icon开头的路径忽略压缩*/
    public $compressResIngorePrefix = [‘js/icon’];
    /** 资源根目录*/
    public $resRootDir;
    /** 资源版本文件路径*/
    private $resStatePath;
 
    public function __construct() {
        $this->resRootDir = WEBROOT . ‘www/’;
        $this->resStatePath = WEBROOT . ‘www/resState.php’;
    }

$compressResDir变量是内需减弱的能源目录,借使你有新的管理目录,能够在此变量里借使新的目录名就可以处理。附上自个儿测量检验项指标目录图

图片 3

$compressResIngorePrefix 忽略被压缩的路子的路子前有个别是该数组变量的字符串,举例有二个能源路线为
js/icon/bg.js或许是js/icon_index.js可能是js/icon.header.js,假诺在该数组中投入了
js/icon那么些字符串,那么财富路线为js/icon开端的都会被忽视掉,也等于直接跳过,不用压缩。(因为能源文件里总有部分是无需收缩的呗)

$resRootDir寄放财富根目录的

$resStatePath 这一个是财富版本文件路线

(2)步入compressRes() 方法,大家先深入分析后面这一段代码

PHP

public function compressRes() { //获取存放版本的财富文件 $resState =
$this->getResState(); $count = 0;

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public function compressRes() {
        //获取存放版本的资源文件
        $resState = $this->getResState();
        $count = 0;

——————————-调用getResState() 讲解start————————————————————-

此间首先是调用 $this->getResState() 方法来获取寄存版本的能源文件,此处先跳到该格局看看是怎么样写的,其实就是蕴涵该文件,然后回来里面寄存版本号的数组,大家看注释可以掌握该文件里寄存版本号的格式(顺便附上图让我们看看)

PHP

/** * 获取贮存财富版本的文本 * 它是位于贰个数组里 * $resState =
array( * ‘文件路线’ => ‘对应的本子号’, * ‘文件路线’ =>
‘对应的版本号’, * ‘文件路线’ => ‘对应的本子号’, * ); * @return
[type] [description] */ public function getResState() { if
(file_exists($this->resStatePath)) { require $this->resStatePath;
return $resState; } return []; }

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/**
     * 获取存放资源版本的文件
     * 它是放在一个数组里
     * $resState = array(
     *         ‘文件路径’ => ‘对应的版本号’,
     *         ‘文件路径’ => ‘对应的版本号’,
     *         ‘文件路径’ => ‘对应的版本号’,
     *     );
     * @return [type] [description]
     */
    public function getResState() {
        if (file_exists($this->resStatePath)) {
            require $this->resStatePath;
            return $resState;
        }
        return [];
    }

(能源版本文件截图:)

图片 4

——————————-调用getResState() 讲解end————————————————————-

跟着看compressRes()里的这一段代码

PHP

//开端遍历要求减小的财富目录 foreach ($this->compressResDir as
$resDir) { foreach (new RecursiveIteratorIterator(new
RecursiveDirectoryIterator($this->resRootDir . $resDir ,
FilesystemIterator::SKIP_DOTS)) as $file) { //获取该财富文件的相对路线$filePath = str_replace(‘\’, ‘/’, $file->getRealPath());
//获取文件相对路线 $object = substr($filePath,
strlen($this->resRootDir)); //计算文件的版本号 $state =
$this->_getResStateVersion($filePath);

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//开始遍历需要压缩的资源目录
        foreach ($this->compressResDir as $resDir) {
            foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($this->resRootDir . $resDir , FilesystemIterator::SKIP_DOTS)) as $file) {
                //获取该资源文件的绝对路径
                $filePath = str_replace(‘\’, ‘/’, $file->getRealPath());
                //获取文件相对路径
                $object = substr($filePath, strlen($this->resRootDir));
                //计算文件的版本号
                $state = $this->_getResStateVersion($filePath);

首先个遍历的是js和css目录
第二个遍历是将js目录或许css目录里的文书都产生路线方式,

举例获取文件的绝对路径 $filePath 的值是那样子的:

/usr/local/apache2/htdocs/project/www/css/home/index.css

而文件的相对路线$object是那样子的 :

css/home/index.css

这边就从头调用$this->_getResStateVersion($filePath)来计量文件的版本号

——————————-调用_getResStateVersion($filePath)
讲解start————————————————————

PHP

/** * 总计文件的版本号,这一个是基于测算文件MD5散列值得到版本号 *
只要文件内容改造了,所总计获得的散列值就可以不等同 *
用于决断财富文件是不是有改换过 * @param [type] $filePath
[description] * @return [type] [description] */ public function
_getResStateVersion($filePath) { return
base_convert(crc32(md5_file($filePath)), 10, 36); }

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/**
     * 计算文件的版本号,这个是根据计算文件MD5散列值得到版本号
     * 只要文件内容改变了,所计算得到的散列值就会不一样
     * 用于判断资源文件是否有改动过
     * @param  [type] $filePath [description]
     * @return [type]           [description]
     */
    public function _getResStateVersion($filePath) {
        return base_convert(crc32(md5_file($filePath)), 10, 36);
    }

——————————-调用_getResStateVersion($filePath)
讲解end————————————————————-

依旧到版本号后,再看下一段代码,这里最初调用$this->getObjectInfo()方法,这里获得到压缩文件的相对路线$minObject,是或不是须要压缩$needCompress,版本号$state,文件后缀$extension。

PHP

//获取文件的多少个参数值 if (true !== $this->getObjectInfo($object,
$minObject, $needCompress, $state, $extension)) { continue; }

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//获取文件的几个参数值
                if (true !== $this->getObjectInfo($object, $minObject, $needCompress, $state, $extension)) {
                    continue;
                }

——————————调用$this->getObjectInfo() 讲解start————————————————————

PHP

/** * 获取能源文件有关新闻 * @param [type] $object 财富文件路线(www/css/home/index.css) * @param [type] $minObject 压缩财富文件路线(www/min/css/home/index.ae123a.css) * @param [type] $needCompress
是或不是必要压缩 * @param [type] $state 文件版本号 * @param [type]
$extension 文件名后缀 * @return [type] [description] */ public
function getObjectInfo($object, &$minObject, &$needCompress, &$state,
&$extension) { //获取财富相对路线 $filePath = $this->resRootDir .
$object; //判定能源是否留存 if (!file_exists($filePath)) return
“财富文件一纸空文{$filePath}”; //版本号 $state = $this->
_getResStateVersion($filePath); //文件名后缀 $extension =
pathinfo($filePath, PATHINFO_EXTENSION); //是还是不是要减小 $needCompress =
true; //剖断财富文件是不是是以 .min.css大概.min.js结尾的
//此类结尾平时都以已缩减过,比如jquery.min.js,就不必再压缩了 if
(str_end_with($object, ‘.min.’.$extension, true)) {
//压缩后的财富寄放路线,放在 /www/min/ 目录下 $minObject =
‘min/’.substr($object, 0, strlen($object) – strlen($extension) – 4) .
$state .’.’. $extension; $needCompress = false; } else if
(in_array($extension, $this->compressResDir)) {
//此处是内需减小的文件目录 $minObject = ‘min/’.substr($object, 0,
strlen($object) – strlen($extension)) . $state . ‘.’ . $extension;
//看看是不是是忽略的不二秘诀前缀 foreach ($this->compressResIngorePrefix as
$v) { if (str_start_with($object, $v, true)) { $needCompress = false;
} } } else { $minObject = ‘min/’.$object; $needCompress = false; }
return true; }

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/**
     * 获取资源文件相关信息
     * @param  [type] $object       资源文件路径 (www/css/home/index.css)
     * @param  [type] $minObject    压缩资源文件路径 (www/min/css/home/index.ae123a.css)
     * @param  [type] $needCompress 是否需要压缩
     * @param  [type] $state        文件版本号
     * @param  [type] $extension    文件名后缀
     * @return [type]               [description]
     */
    public function getObjectInfo($object, &$minObject, &$needCompress, &$state, &$extension) {
        //获取资源绝对路径
        $filePath = $this->resRootDir . $object;
        //判断资源是否存在
        if (!file_exists($filePath)) return "资源文件不存在{$filePath}";
        //版本号
        $state = $this-> _getResStateVersion($filePath);
        //文件名后缀
        $extension = pathinfo($filePath, PATHINFO_EXTENSION);
        //是否要压缩
        $needCompress = true;
 
        //判断资源文件是否是以 .min.css或者.min.js结尾的
        //此类结尾一般都是已压缩过,例如jquery.min.js,就不必再压缩了
        if (str_end_with($object, ‘.min.’.$extension, true)) {
            //压缩后的资源存放路径,放在 /www/min/ 目录下
            $minObject = ‘min/’.substr($object, 0, strlen($object) – strlen($extension) – 4) . $state .’.’. $extension;
            $needCompress = false;
        } else if (in_array($extension, $this->compressResDir)) {
            //此处是需要压缩的文件目录
            $minObject = ‘min/’.substr($object, 0, strlen($object) – strlen($extension)) . $state . ‘.’ . $extension;
            //看看是否是忽略的路径前缀
            foreach ($this->compressResIngorePrefix as $v) {
                if (str_start_with($object, $v, true)) {
                    $needCompress = false;
                }
            }
        } else {
            $minObject = ‘min/’.$object;
            $needCompress = false;
        }
        return true;
    }

这些主意里的每一行代码基本上都有注释了,所以就不一句句进行疏解了,这里关键看上面的论断部分:

if (str_end_with($object, ‘.min.’.$extension, true))
这一个论断是相比较能源文件路线字串后面部分是或不是以 .min.$extension
结尾,比方是 jquery.min.js,这种文件本来正是
削减过的文书,所以就不要再展开压缩处理了, $minObject
那些变量存放的是缩减后的能源文件路线。
此间附上str_end_with()函数的代码:

PHP

/** * 剖断 subject 是还是不是以 search结尾, 参数钦点是不是忽略大小写 *
@param [type] $subject [description] * @param [type] $search
[description] * @param boolean $ignore_case [description] *
@return [type] [description] */ function str_end_with($subject,
$search, $ignore_case = false) { $len2 = strlen($search); if (0 ===
$len2) return true; $len1 = strlen($subject); if ($len2 > $len1)
return false; if ($ignore_case) { return 0 === strcmp(substr($subject,
$len1 – $len2), $search); } else { return 0 ===
strcasecmp(substr($subject, $len1 – $len2), $search); } }

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/**
     * 判断 subject 是否以 search结尾, 参数指定是否忽略大小写
     * @param  [type]  $subject     [description]
     * @param  [type]  $search      [description]
     * @param  boolean $ignore_case [description]
     * @return [type]               [description]
     */
    function str_end_with($subject, $search, $ignore_case = false) {
        $len2 = strlen($search);
        if (0 === $len2) return true;
        $len1 = strlen($subject);
        if ($len2 > $len1) return false;
        if ($ignore_case) {
            return 0 === strcmp(substr($subject, $len1 – $len2), $search);
        } else {
            return 0 === strcasecmp(substr($subject, $len1 – $len2), $search);
        }
    }

if
(in_array($extension, $this->compressResDir),那一个推断就是是不是是须求管理的三个目录里的。

接下来中间的foreach ($this->compressResIngorePrefix as $v) { if
(str_start_with($object, $v, true)) { $needCompress = false; } }

其一是决断是不是是以$this->compressResIngorePrefix属性定义的前边部分字串初始的不二等秘书技,是的话就忽略压缩该财富文件。

看清到终极else
就是申明该财富文件不必要收缩了,最终是回来$minObject,$needCompress,$state,$extension那多个变量。

——————————-调用$this->getObjectInfo() 讲解end————————————————————-

到这里继续回到看 compressRes()方法里面包车型地铁代码

PHP

//压缩文件的相对路线 $minFilePath = str_replace(‘\’, ‘/’,
$this->resRootDir. $minObject);
//************此处p决断是最关键部分之一*****************//
//推断文件是或不是存在且早就改造过 if (isset($resState[$object]) &&
$resState[$object] == $state && isset($resState[$minObject]) &&
file_exists($minFilePath)) { continue; }

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//压缩文件的绝对路径
                $minFilePath = str_replace(‘\’, ‘/’, $this->resRootDir. $minObject);
 
                //************此处p判断是最重要部分之一*****************//
                //判断文件是否存在且已经改动过
                if (isset($resState[$object]) && $resState[$object] == $state && isset($resState[$minObject]) && file_exists($minFilePath)) {
                    continue;
                }

这段代码首先是拼接出压缩文件的相对路线,

紧接着上边这几个判别是人命关天的某个,通过这些论断就足以清楚该能源文件是或不是被改成过,假设退换过的话,就再也对该能源文件进行压缩,假设没改换过,就一而再管理下一个能源文件。看这里的论断:isset($resState[$object])
&& $resState[$object] == $state,这些判定正是判定该公文路线是还是不是留存 
而且文件中对应的版本号和测算出的版本号是还是不是还一致;isset($resState[$minObject])
&&file_exists($minFilePath),那些是剖断压缩文件路线是不是留存,並且该压缩文件是不是实际存在目录中。

看下一段代码,如果能走到这一局地,表明当前的这一个财富文件是被更动过的(代码修改过),那么此时就对文件举行削减操作了

PHP

//确定保证/www/min/目录可写
$this->_ensureWritableDir(dirname($minFilePath)); if ($needCompress)
{ $this->compressResFileAndSave($filePath, $minFilePath); } else {
copy($filePath, $minFilePath); }

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//确保/www/min/目录可写
                $this->_ensureWritableDir(dirname($minFilePath));
 
                if ($needCompress) {
                    $this->compressResFileAndSave($filePath, $minFilePath);
                } else {
                    copy($filePath, $minFilePath);
                }

$this->_ensureWritableDir(),此情势是要力保新创立的www/min目录是可写的,这里附上代码:

——————————-调用$this->_ensureWritableDir() 讲解start————————————————————-

PHP

/** * 确定保证目录可写 * @param [type] $dir [description] * @return
[type] [description] */ private function _ensureWritableDir($dir)
{ if (!file_exists($dir)) { @mkdir($dir, 0777, true); @chmod($dir,
0777); } else if (!is_writable($dir)) { @chmod($dir, 0777); if
(!is_writable($dir)) { show_error(‘目录’.$dir.’不可写’); } } }

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/**
     * 确保目录可写
     * @param  [type] $dir [description]
     * @return [type]      [description]
     */
    private function _ensureWritableDir($dir) {
        if (!file_exists($dir)) {
            @mkdir($dir, 0777, true);
            @chmod($dir, 0777);
        } else if (!is_writable($dir)) {
            @chmod($dir, 0777);
            if (!is_writable($dir)) {
                show_error(‘目录’.$dir.’不可写’);
            }
        }
    }

——————————-调用$this->_ensureWritableDir() 讲解end————————————————————-

if
($needCompress),那么些判别能源文件是还是不是须要缩小,要求的话调用$this->compressResFileAndSave($filePath,
$minFilePath);无需的话,直接复制文件到压缩文件路线 copy($file帕特h,
$minFilePath);

先看$this->compressResFileAndSave()

——————————-调用$this->compressResFileAndSave()
讲解start————————————————————-

PHP

/** * 将缩减后的能源文件写入到/www/min/下去 * @param [type]
$filePath [description] * @param [type] $minFilePath
[description] * @return [type] [description] */ private function
compressResFileAndSave($filePath, $minFilePath) { if
(!file_put_contents($minFilePath,
$this->compressResFile($filePath))) {
//$CI->exceptions->show_exception(“写入文件{$minFilePath}失利”);
show_error(“写入文件{$minFilePath}失败”, -1); } } /** * 压缩财富文件
* @param [type] $filePath [description] * @return [type]
[description] */ private function compressResFile($filePath) {
$extension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION)); if
($extension === ‘js’) { require_once ‘JShrink/Minifier.php’; return
JShrinkMinifier::minify(file_get_contents($filePath)); } else if
($extension ===’css’) { $content = file_get_contents($filePath);
$content =
preg_replace(‘!/*[^*]**+([^/][^*]**+)*/!’, ”,
$content); $content = str_replace([“rn”, “r”, “n”], ”,
$content); $content = preg_replace(‘/([{}),;:>])s+/’, ‘$1’,
$content); $content = preg_replace(‘/s+([{}),;:>])/’, ‘$1’,
$content); $content = str_replace(‘;}’, ‘}’, $content); return
$content; } else {
//$CI->exceptions->show_exception(“不援助压缩{extension}文件[$filePath]”);
show_error(“不援救压缩{extension}文件[$filePath]”, -1); } }

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/**
     * 将压缩后的资源文件写入到/www/min/下去
     * @param  [type] $filePath    [description]
     * @param  [type] $minFilePath [description]
     * @return [type]              [description]
     */
    private function compressResFileAndSave($filePath, $minFilePath) {
        if (!file_put_contents($minFilePath, $this->compressResFile($filePath))) {
 
            //$CI->exceptions->show_exception("写入文件{$minFilePath}失败");
            show_error("写入文件{$minFilePath}失败", -1);
        }
    }
 
    /**
     * 压缩资源文件
     * @param  [type] $filePath [description]
     * @return [type]           [description]
     */
    private function compressResFile($filePath) {
        $extension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
        if ($extension === ‘js’) {
            require_once ‘JShrink/Minifier.php’;
            return JShrinkMinifier::minify(file_get_contents($filePath));
        } else if ($extension ===’css’) {
            $content = file_get_contents($filePath);
            $content = preg_replace(‘!/*[^*]**+([^/][^*]**+)*/!’, ”, $content);
            $content = str_replace(["rn", "r", "n"], ”, $content);
            $content = preg_replace(‘/([{}),;:>])s+/’, ‘$1’, $content);
            $content = preg_replace(‘/s+([{}),;:>])/’, ‘$1’, $content);
            $content = str_replace(‘;}’, ‘}’, $content);
            return $content;
        } else {
            //$CI->exceptions->show_exception("不支持压缩{extension}文件[$filePath]");
            show_error("不支持压缩{extension}文件[$filePath]", -1);
 
        }
    }

先削减,再将降低后的内容写入到 压缩文件路线里去。

大家先看下那几个压缩方法:

$this->compressResFile($filePath);
此方法中分两类压缩,第一类时对js文件举行削减,第二类的对css文件实行压缩。先说js压缩,这里是调用一个JShrink的类,它

三个用来压缩js文件的PHP类,百度能够找到,调用这么些类的minify()那么些措施就足以减掉了;而css的压缩利用正则替换到收缩,把那么些空格换行什么的都去掉。到此就降低成功

了,然后再将审核消减后的能源写入到对应的压缩文件路线里去。

——————————-调用$this->compressResFileAndSave()
讲解end————————————————————-

继之继续看compressRes()这一个办法里的代码,这里开纠正是保存新的本子号到$resState数组里
$object=>$state,还应该有正是新的滑坡路线$minObject,而那边$count++的作用是,当以此轮回四十四遍就将
$resState这些数组写入一回到
resState.php文件里,这里是出于留心思考而已,就算你不加那一个$count的拍卖那部分也能够,最终写入三次就行了。

PHP

$resState[$object] = $state; $resState[$minObject] = ”; $count++;
if ($count == 50) { $this->_saveResState($resState); $count = 0; } }
} if($count) $this->_saveResState($resState);

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$resState[$object] = $state;
                $resState[$minObject] = ”;
                $count++;
 
                if ($count == 50) {
                    $this->_saveResState($resState);
                    $count = 0;
                }
 
            }
        }
        if($count) $this->_saveResState($resState);

这里看$this->_saveResState($resState),这一个格局正是将$resState数组写入到resState.php文件里去的章程。

——————————-调用$this->_saveResState($resState)
讲解start————————————————————-

PHP

private function _saveResState($resState) { ksort($resState); $content
= “<?phpnn$resState = array(n”; foreach ($resState as $k
=> $v) { $content .= “t ‘$k’ => ‘$v’,n”; } $content .=
“);nn”; file_put_contents($this->resStatePath, $content); }

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private function _saveResState($resState) {
        ksort($resState);
        $content = "<?phpnn$resState = array(n";
        foreach ($resState as $k => $v) {
            $content .= "t ‘$k’ => ‘$v’,n";
        }
        $content .= ");nn";
        file_put_contents($this->resStatePath, $content);
    }

——————————-调用$this->_saveResState($resState)
讲解end————————————————————-

管理完后,看看所生成的文书,这里叁个文件会有多个版本,旧版本从未有过去除掉,在付出条件下删不删除都没难点,这里为啥不删除旧版本的压缩文件,那就涉嫌到在革新四个应用服务器代码时所要注意的标题里。在此小编就多批注一点啊,轻松地举个例证吗,平日大型项目中的静态财富和模板文件是计划在不相同的机械集群上的,上线的进度中,静态财富和页面文件的布置时间距离恐怕会要命长,对于八个特大型互连网使用来讲固然在一个极小的年月距离内,都有望出现新客户访谈,假使旧版本的静态能源删除了,但新本子的静态能源还没安插造成,那么客户就加载不到该静态能源,结果总来讲之,所以,日常景观下大家会保留旧版本的静态能源,然后等全数片段配备到位了,再通过一定的本子删除掉也没提到,其实,这个不必删除也是能够的,你思索,二个种类发三遍版本,才会调用一次能源文件减弱方法,它只会对修改过的公文举行生成新版本号的静态文件而已。那几个就看个人的做法了。

图片 5

大家能够张开看看,上面那个就是缩减后的公文的代码了,文件原大小为16K,压缩后大概少了5K,今后是11K,压缩比大约是2/3,假设在大型项目中,一个复杂点的页面会有十分的大的静态财富文件要加载,通过此格局,大大地加强了加载的进程。(恐怕有一些朋友以为压缩个几K只怕十几K算什么,完全能够忽略,其实本人想说的是,当你在大型项目中优化品种的时候,能够降低几K的代码,也给网址的性质升高了第一次全国代表大会截)

图片 6

到此,财富减弱管理就深入分析完成了。其实,有自然基础的相恋的人,能够平素看自身享受的要命代码就能够了,借使理解不了,再看作者上边这一步步的解析解说,笔者是高居能看过来此博客的恋人,无论本领是好依旧是稍弱,都能看懂,所以才对代码一步步地开展辨析教学。(希望各位多多点拨二哥)

————————————————————————————————————————-

  1. 接下去正是执教怎样替换压缩后的能源文件了。

这个到Home.php

PHP

<?php defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
class Home extends MY_Controller { public function index() {
$this->smartyData[‘test’] = 111; //那些暗中同意是加载
www/css/home/index.css文件 $this->addResLink(‘index.css’);
//那一个私下认可是加载www/js/jquery.all.min.js文件
$this->addResLink(‘/jquery.all.min.js’);
//这一个暗许是加载www/js/index.js文件 $this->addResLink(‘index.js’);
$this->displayView(‘home/index.tpl’); } }

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<?php
defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
 
class Home extends MY_Controller {
    public function index() {
        $this->smartyData[‘test’] = 111;
        //这个默认是加载 www/css/home/index.css文件
        $this->addResLink(‘index.css’);
        //这个默认是加载www/js/jquery.all.min.js文件
        $this->addResLink(‘/jquery.all.min.js’);
        //这个默认是加载www/js/index.js文件
        $this->addResLink(‘index.js’);
        $this->displayView(‘home/index.tpl’);
    }
}

地点有加载三个能源文件,大家先看看$this->addResLink();那一个方法,这几个法子放在My_Controller.php里:

PHP

/** * 财富路线 * @param [type] $filePath [description] */
protected function addResLink($filePath) { list($filePath, $query) =
explode(‘?’, $filePath . ‘?’); $extension =
strtolower(pathinfo($filePath, PATHINFO_EXTENSION)); foreach
($this->_resLink as $v) { if (false === array_search($filePath,
$this->_resLink[$extension])) {
$this->_resLink[$extension][] = $query == null ? $filePath :
$filePath .’?’. $query; } } return $this; }

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/**
     * 资源路径
     * @param [type] $filePath [description]
     */
    protected function addResLink($filePath) {
        list($filePath, $query) = explode(‘?’, $filePath . ‘?’);
        $extension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
        foreach ($this->_resLink as $v) {
            if (false === array_search($filePath, $this->_resLink[$extension])) {
                $this->_resLink[$extension][] = $query == null ? $filePath : $filePath .’?’. $query;
            }
        }
 
        return $this;
    }

那边根本是判别了财富文件是css还是js,然后将其贮存在
$this->_resLink这天特性里。

那就是说这里我就先附上My_Controller.php这些父类的富有代码吧

PHP

<?php defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
class MY_Controller extends CI_Controller { public function
__construct() { parent::__construct(); //压缩jscss能源文件
$this->compressResHandle(); }
//==========================使用SMARTY模板引擎================================//
/* 斯马特y母版页文件路线 */ protected $masterPage = ‘default.tpl’; /*
视图像和文字件路径*/ protected $smartyView; /* 要赋值给smarty视图的多少*/
protected $smartyData = []; /* 能源文件*/ protected $_resLink =
[‘js’=>[], ‘css’=>[]]; /** * 使用母版页输出三个视图 *
@return [type] [description] */ protected function
displayView($viewName = null, $masterPage = null) { //为空则选择暗中同意母版
if ($masterPage == null) $masterPage = $this->masterPage;
//获取视图的出口内容 $viewContent =
$this->_fetchView($this->smartyData, $viewName, $masterPage);
$output = ”; //添加css Link foreach ($this->_resLink[‘css’] as
$v) { $output .= res_link($v); } //内容部分 $output .= $viewContent;
//尾部增加js 链接 foreach ($this->_resLink[‘js’] as $v) { $output
.= res_link($v); } //发送最终输出结果以及服务器的 HTTP 头到浏览器
$this->output->_display($output); return $output; } private
function _fetchView($smartyData, &$viewName, &$masterPage) { if
($viewName == null) $viewName = $this->smartyView; if
(empty($this->smarty)) { require_once
SMARTY_DI大切诺基.’斯马特y.class.php’; $this->smarty = new 斯马特y();
$this->smarty->setCompileDir(应用软件PATH . ‘cache/’);
$this->smarty->setCacheDir(APPPATH . ‘cache/’); }
//设置视图真实路径 $this->_getViewDir(true, $viewName, $masterPage,
$templateDir); foreach ($smartyData as $k => $v) {
$this->smarty->assign($k, $v); } if (empty($masterPage)) { return
$this->smarty->fetch($viewName); } else {
$this->smarty->assign(‘VIEW_MAIN’, $viewName); return
$this->smarty->fetch($masterPage); } } /** * 财富路径 * @param
[type] $filePath [description] */ protected function
addResLink($filePath) { list($filePath, $query) = explode(‘?’, $filePath
. ‘?’); $extension = strtolower(pathinfo($filePath,
PATHINFO_EXTENSION)); foreach ($this->_resLink as $v) { if (false
=== array_search($filePath, $this->_resLink[$extension])) {
$this->_resLink[$extension][] = $query == null ? $filePath :
$filePath .’?’. $query; } } return $this; } private function
_getViewDir($setTemplateDir, &$viewName, &$masterPage = null,
&$templateDir) { if (‘/’ === $viewName[0]) $viewName =
substr($viewName, 1); //是或不是选拔模板,有,则路由到
/views/master_page/*****.tpl下去 if ($masterPage) { $masterPage =
‘/’ === $masterPage[0] ? substr($masterPage, 1) : (‘master_page’
.’/’. $masterPage); } //是不是设置模板目录 if ($setTemplateDir) {
$templateDir = VIEWPATH;
$this->smarty->setTemplateDir($templateDir); } } /** *
压缩js、css财富文件(优化) * @return [type] [description] */
private function compressResHandle() {
$this->load->library(‘ResMinifier’); //压缩钦定文件夹下的财富文件
$this->resminifier->compressRes(); } } 点击张开 My_Controller.php

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<?php
defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
 
class MY_Controller extends CI_Controller {
    public function __construct() {
        parent::__construct();
 
        //压缩jscss资源文件
        $this->compressResHandle();
    }
 
    //==========================使用SMARTY模板引擎================================//
    /* Smarty母版页文件路径 */
    protected $masterPage = ‘default.tpl’;
    /* 视图文件路径*/
    protected $smartyView;
    /* 要赋值给smarty视图的数据*/
    protected $smartyData = [];
    /* 资源文件*/
    protected $_resLink = [‘js’=>[], ‘css’=>[]];
 
    /**
     * 使用母版页输出一个视图
     * @return [type] [description]
     */
    protected function displayView($viewName = null, $masterPage = null) {
        //为空则选用默认母版
        if ($masterPage == null) $masterPage = $this->masterPage;
        //获取视图的输出内容
        $viewContent = $this->_fetchView($this->smartyData, $viewName, $masterPage);
 
        $output = ”;
 
        //添加css Link
        foreach ($this->_resLink[‘css’] as $v) {
            $output .= res_link($v);
        }
 
        //内容部分
        $output .= $viewContent;
        //尾部添加js 链接
        foreach ($this->_resLink[‘js’] as $v) {
            $output .= res_link($v);
        }
        //发送最终输出结果以及服务器的 HTTP 头到浏览器
 
        $this->output->_display($output);
        return $output;
    }
 
    private function _fetchView($smartyData, &$viewName, &$masterPage) {
        if ($viewName == null) $viewName = $this->smartyView;
 
        if (empty($this->smarty)) {
            require_once SMARTY_DIR.’Smarty.class.php’;
            $this->smarty = new Smarty();
            $this->smarty->setCompileDir(APPPATH . ‘cache/’);
            $this->smarty->setCacheDir(APPPATH . ‘cache/’);
        }
 
        //设置视图真实路径
        $this->_getViewDir(true, $viewName, $masterPage, $templateDir);
 
        foreach ($smartyData as $k => $v) {
            $this->smarty->assign($k, $v);
        }
 
        if (empty($masterPage)) {
            return $this->smarty->fetch($viewName);
        } else {
            $this->smarty->assign(‘VIEW_MAIN’, $viewName);
            return $this->smarty->fetch($masterPage);
        }
    }
 
    /**
     * 资源路径
     * @param [type] $filePath [description]
     */
    protected function addResLink($filePath) {
        list($filePath, $query) = explode(‘?’, $filePath . ‘?’);
        $extension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
        foreach ($this->_resLink as $v) {
            if (false === array_search($filePath, $this->_resLink[$extension])) {
                $this->_resLink[$extension][] = $query == null ? $filePath : $filePath .’?’. $query;
            }
        }
 
        return $this;
    }
 
    private function _getViewDir($setTemplateDir, &$viewName, &$masterPage = null, &$templateDir) {
        if (‘/’ === $viewName[0]) $viewName = substr($viewName, 1);
 
        //是否使用模板,有,则路由到 /views/master_page/*****.tpl下去
        if ($masterPage) {
            $masterPage = ‘/’ === $masterPage[0] ? substr($masterPage, 1) : (‘master_page’ .’/’. $masterPage);
        }
 
        //是否设置模板目录
        if ($setTemplateDir) {
            $templateDir = VIEWPATH;
            $this->smarty->setTemplateDir($templateDir);
        }
    }
 
    /**
     * 压缩js、css资源文件(优化)
     * @return [type] [description]
     */
    private function compressResHandle() {
        $this->load->library(‘ResMinifier’);
        //压缩指定文件夹下的资源文件
        $this->resminifier->compressRes();
    }
}
 
点击打开 My_Controller.php

打字与印刷出来 $this->_resLink这几个性子的协会是那样子的:

PHP

Array ( [js] => Array ( [0] => /jquery.all.min.js [1] =>
index.js ) [css] => Array ( [0] => index.css ) )

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Array
(
    [js] => Array
        (
            [0] => /jquery.all.min.js
            [1] => index.js
        )
 
    [css] => Array
        (
            [0] => index.css
        )
 
)

再重返Home.php里面调用 $this->displayView(‘home/index.tpl’);

咱俩看这么些情势:

PHP

/** * 使用母版页输出四个视图 * @return [type] [description] */
protected function displayView($viewName = null, $masterPage = null) {
//为空则选取暗许母版 if ($masterPage == null) $masterPage =
$this->masterPage; //获取视图的出口内容 $viewContent =
$this->_fetchView($this->smartyData, $viewName, $masterPage);
$output = ”; //添加css Link foreach ($this->_resLink[‘css’] as
$v) { $output .= res_link($v); } //内容部分 $output .= $viewContent;
//尾巴部分加多js 链接 foreach ($this->_resLink[‘js’] as $v) { $output
.= res_link($v); } //发送最后输出结果以及服务器的 HTTP 头到浏览器
$this->output->_display($output); return $output; } private
function _fetchView($smartyData, &$viewName, &$masterPage) { if
($viewName == null) $viewName = $this->smartyView; if
(empty($this->smarty)) { require_once
SMARTY_DI奥迪Q3.’斯Matty.class.php’; $this->smarty = new 斯马特y();
$this->smarty->setCompileDir(APPPATH . ‘cache/’);
$this->smarty->setCacheDir(应用软件PATH . ‘cache/’); }
//设置视图真实路线 $this->_getViewDir(true, $viewName, $masterPage,
$templateDir); foreach ($smartyData as $k => $v) {
$this->smarty->assign($k, $v); } if (empty($masterPage)) { return
$this->smarty->fetch($viewName); } else {
$this->smarty->assign(‘VIEW_MAIN’, $viewName); return
$this->smarty->fetch($masterPage); } }

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/**
     * 使用母版页输出一个视图
     * @return [type] [description]
     */
    protected function displayView($viewName = null, $masterPage = null) {
        //为空则选用默认母版
        if ($masterPage == null) $masterPage = $this->masterPage;
        //获取视图的输出内容
        $viewContent = $this->_fetchView($this->smartyData, $viewName, $masterPage);
 
        $output = ”;
 
        //添加css Link
        foreach ($this->_resLink[‘css’] as $v) {
            $output .= res_link($v);
        }
 
        //内容部分
        $output .= $viewContent;
        //尾部添加js 链接
        foreach ($this->_resLink[‘js’] as $v) {
            $output .= res_link($v);
        }
        //发送最终输出结果以及服务器的 HTTP 头到浏览器
 
        $this->output->_display($output);
        return $output;
    }
 
    private function _fetchView($smartyData, &$viewName, &$masterPage) {
        if ($viewName == null) $viewName = $this->smartyView;
 
        if (empty($this->smarty)) {
            require_once SMARTY_DIR.’Smarty.class.php’;
            $this->smarty = new Smarty();
            $this->smarty->setCompileDir(APPPATH . ‘cache/’);
            $this->smarty->setCacheDir(APPPATH . ‘cache/’);
        }
 
        //设置视图真实路径
        $this->_getViewDir(true, $viewName, $masterPage, $templateDir);
 
        foreach ($smartyData as $k => $v) {
            $this->smarty->assign($k, $v);
        }
 
        if (empty($masterPage)) {
            return $this->smarty->fetch($viewName);
        } else {
            $this->smarty->assign(‘VIEW_MAIN’, $viewName);
            return $this->smarty->fetch($masterPage);
        }
    }

这一段代码没有一部分正是调用了Smarty模板引擎的从头到尾的经过,那些关于斯玛特y的学识笔者就不讲了,大家能够本身百度,这里主要讲
res_link()
那些函数,正是通过这一个函数来张开财富文件替换的。先看这些函数的代码:

PHP

/** * 输出 HttpHead 中的财富总是。 css/js 自动决断真实路线 * @param
string 文件路线 * @return string */ function res_link($file) { $file
= res_path($file, $extension); if ($extension === ‘css’) { return
‘<link rel=”stylesheet” type=”text/css” href=”‘%20.%20$file%20.%20′”/>’; }
else if ($extension === ‘js’) { return ‘<script
type=”text/javascript” src=”‘.$file.'”></script>’; } else {
return false; } }

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/**
     * 输出 HttpHead 中的资源连接。 css/js 自动判断真实路径
     * @param  string  文件路径
     * @return string      
     */
    function res_link($file) {
        $file = res_path($file, $extension);
 
        if ($extension === ‘css’) {
           return ‘<link rel="stylesheet" type="text/css" href="’%20.%20$file%20.%20’"/>’;
        } else if ($extension === ‘js’) {
            return ‘<script type="text/javascript" src="’.$file.’"></script>’;
        } else {
            return false;
        }
    }

那边最紧要便是 res_path() 函数了,那一个函数能自动路由财富的忠实路径。举个例子:index.css = > css/home/index.css

该函数最珍视的二个意义是替换能源的收缩版本。

直白看代码:

PHP

/** * 智能路由能源实际路径 * @param string 路径 * @param string
扩展名 * @return string 真实路线 */ function res_path($file,
&$extension) { //检查是还是不是存在询问字符串 list($file, $query) =
explode(‘?’, $file . ‘?’); //猎取增加名 $extension =
strtolower(pathinfo($file, PATHINFO_EXTENSION)); // $file =
str_replace(‘\’, ‘/’, $file); //取安妥前调整器名 global $class; if
($class == null) exit(‘can not get class name’); $className =
strtolower($class); //此处的条条框框是这样: //比方,要是不加 /
,Home调整器对应的格式是: index.css,那么
此处的路线会变成css/home/index.css //假设有 / ,调节器的格式能够是
/main.css,那么这里的路线会产生 css/main.css(公用的css类) if (‘/’ !==
$file[0]) { //index.css => css/home/index.css $object = $extension
.’/’. $className .’/’ . $file; } else { // /css/main.css 大概 /main.css
=> css/main.css $object = substr($file, 1); //若object是 main.css
,则自动抬高 增加名目录 => css/main.css if (0 !==
strncasecmp($extension, $object, strlen($extension))) { $object =
$extension . ‘/’ . $object; } } //能源真实路线 $filepath =
WEBROOT.’www/’.$object; //替换压缩版本,那有的逻辑与公事减弱逻辑对应 if
(in_array($extension, array(‘css’, ‘js’))) {
if(!str_start_with($object, ‘min/’) &&
file_exists(APPPATH.’libraries/ResMinifier.php’)) { require_once
APPPATH.’libraries/ResMinifier.php’; $resminifier = new ResMinifier();
//获取寄存财富版本的公文的数组变量 $resState =
$resminifier->getResState(); //总计取伏贴前文件版本号 $state =
$resminifier->_getResStateVersion($filepath); //判别该版本号是或不是留存
if (isset($resState[$object])) { //决断是或不是是.min.css或.min.js结尾 if
(str_end_with($object, ‘.min.’.$extension)) {
//将版本号拼接上去,然后拿走min的文本路径 $minObject =
‘min/’.substr($object, 0, strlen($object) – strlen($extension) – 4) .
$state . ‘.’ . $extension; } else {
//将版本号拼接上去,然后拿走min的文件路线 $minObject =
‘min/’.substr($object, 0, strlen($object) – strlen($extension)) . $state
. ‘.’ . $extension; } //剖断min的门路是还是不是留存在$resState里面 if
(isset($resState[$minObject])) { $object = $minObject; $query = ”; }
} } $file = RES_BASE_URL . $object; } return ($query == null) ? $file
: ($file .’?’. $query); }

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/**
     * 智能路由资源真实路径
     * @param  string      路径
     * @param  string      扩展名
     * @return string       真实路径
     */
    function res_path($file, &$extension) {
        //检查是否存在查询字符串
        list($file, $query) = explode(‘?’, $file . ‘?’);
        //取得扩展名
        $extension = strtolower(pathinfo($file, PATHINFO_EXTENSION));
        //
        $file = str_replace(‘\’, ‘/’, $file);
        //取得当前控制器名
        global $class;
        if ($class == null) exit(‘can not get class name’);
        $className = strtolower($class);
 
        //此处的规则是这样:
        //例如,如果不加 / ,Home控制器对应的格式是: index.css,那么 此处的路径会变成css/home/index.css
        //假如有 / ,控制器的格式可以是 /main.css,那么此处的路径会变成 css/main.css(公用的css类)
        if (‘/’ !== $file[0]) {
            //index.css => css/home/index.css
            $object = $extension .’/’. $className .’/’ . $file;
        } else {
            // /css/main.css 或者 /main.css => css/main.css
            $object = substr($file, 1);
 
            //若object是 main.css ,则自动加上 扩展名目录 => css/main.css
            if (0 !== strncasecmp($extension, $object, strlen($extension))) {
                $object = $extension . ‘/’ . $object;
            }
        }
        //资源真实路径
        $filepath = WEBROOT.’www/’.$object;
 
        //替换压缩版本,这部分逻辑与文件压缩逻辑对应
        if (in_array($extension, array(‘css’, ‘js’))) {
            if(!str_start_with($object, ‘min/’) && file_exists(APPPATH.’libraries/ResMinifier.php’)) {
                require_once APPPATH.’libraries/ResMinifier.php’;
                $resminifier = new ResMinifier();
                //获取存放资源版本的文件的数组变量
                $resState = $resminifier->getResState();
                //计算得到当前文件版本号
                $state = $resminifier->_getResStateVersion($filepath);
                //判断该版本号是否存在
                if (isset($resState[$object])) {
                    //判断是否是.min.css或.min.js结尾
                    if (str_end_with($object, ‘.min.’.$extension)) {
                        //将版本号拼接上去,然后得到min的文件路径
                        $minObject = ‘min/’.substr($object, 0, strlen($object) – strlen($extension) – 4) . $state . ‘.’ . $extension;
                    } else {
                        //将版本号拼接上去,然后得到min的文件路径
                        $minObject = ‘min/’.substr($object, 0, strlen($object) – strlen($extension)) . $state . ‘.’ . $extension;
                    }
                    //判断min的路径是否存在在$resState里面
                     if (isset($resState[$minObject])) {
                        $object = $minObject;
                        $query = ”;
                     }
                }
 
            }
 
            $file = RES_BASE_URL . $object;
        }
 
        return ($query == null) ? $file : ($file .’?’. $query);
 
    }

代码基本上都给了讲明,方便大家轻易去领悟,前边一部分是智能路线css、js财富的路径,后边一部分是替换压缩版本,这一局地的逻辑其实和能源减少这里的逻辑基本等同,正是通过能源文件路线,实行决断和管理,最终获得能源的回降版本的门路,最终就将财富的收缩版本的不二等秘书技再次来到去,放在'<link
rel=”stylesheet” type=”text/css” href=”‘ . $file . ‘”/>’里面。那样 
,就成功地将财富文件路线替换到了削减版本的财富文件路线,并且在模板输出时,输出的是压缩后的财富文件。

到此,能源替换的从头到尾的经过就到此解说截至。而整一项技艺也剖判到此。

三、总结

在此地小编聚集地附着本博文疏解中的多少个文本代码:

Home.php

PHP

<?php defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
class Home extends MY_Controller { public function index() {
$this->smartyData[‘test’] = 111; //这么些暗许是加载
www/css/home/index.css文件 $this->addResLink(‘index.css’);
//那个暗中同意是加载www/js/jquery.all.min.js文件
$this->addResLink(‘/jquery.all.min.js’);
//这几个暗许是加载www/js/index.js文件 $this->addResLink(‘index.js’);
$this->displayView(‘home/index.tpl’); } } 点击张开

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<?php
defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
 
class Home extends MY_Controller {
    public function index() {
        $this->smartyData[‘test’] = 111;
        //这个默认是加载 www/css/home/index.css文件
        $this->addResLink(‘index.css’);
        //这个默认是加载www/js/jquery.all.min.js文件
        $this->addResLink(‘/jquery.all.min.js’);
        //这个默认是加载www/js/index.js文件
        $this->addResLink(‘index.js’);
        $this->displayView(‘home/index.tpl’);
    }
}
 
点击打开

My_Controller.php

PHP

<?php defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
class MY_Controller extends CI_Controller { public function
__construct() { parent::__construct(); //压缩jscss能源文件
$this->compressResHandle(); }
//==========================使用SMARTY模板引擎================================//
/* 斯马特y母版页文件路线 */ protected $masterPage = ‘default.tpl’; /*
视图像和文字件路线*/ protected $smartyView; /* 要赋值给smarty视图的多寡*/
protected $smartyData = []; /* 能源文件*/ protected $_resLink =
[‘js’=>[], ‘css’=>[]]; /** * 使用母版页输出一个视图 *
@return [type] [description] */ protected function
displayView($viewName = null, $masterPage = null) { //为空则选择默许母版
if ($masterPage == null) $masterPage = $this->masterPage;
//获取视图的输出内容 $viewContent =
$this->_fetchView($this->smartyData, $viewName, $masterPage);
$output = ”; //添加css Link foreach ($this->_resLink[‘css’] as
$v) { $output .= res_link($v); } //内容部分 $output .= $viewContent;
//尾巴部分增加js 链接 foreach ($this->_resLink[‘js’] as $v) { $output
.= res_link($v); } //发送最后输出结果以及服务器的 HTTP 头到浏览器
$this->output->_display($output); return $output; } private
function _fetchView($smartyData, &$viewName, &$masterPage) { if
($viewName == null) $viewName = $this->smartyView; if
(empty($this->smarty)) { require_once
SMARTY_DICR-V.’Smarty.class.php’; $this->smarty = new 斯马特y();
$this->smarty->setCompileDir(APPPATH . ‘cache/’);
$this->smarty->setCacheDir(应用软件PATH . ‘cache/’); }
//设置视图真实路线 $this->_getViewDir(true, $viewName, $masterPage,
$templateDir); foreach ($smartyData as $k => $v) {
$this->smarty->assign($k, $v); } if (empty($masterPage)) { return
$this->smarty->fetch($viewName); } else {
$this->smarty->assign(‘VIEW_MAIN’, $viewName); return
$this->smarty->fetch($masterPage); } } /** * 能源路线 * @param
[type] $filePath [description] */ protected function
addResLink($filePath) { list($filePath, $query) = explode(‘?’, $filePath
. ‘?’); $extension = strtolower(pathinfo($filePath,
PATHINFO_EXTENSION)); foreach ($this->_resLink as $v) { if (false
=== array_search($filePath, $this->_resLink[$extension])) {
$this->_resLink[$extension][] = $query == null ? $filePath :
$filePath .’?’. $query; } } return $this; } private function
_getViewDir($setTemplateDir, &$viewName, &$masterPage = null,
&$templateDir) { if (‘/’ === $viewName[0]) $viewName =
substr($viewName, 1); //是或不是使用模板,有,则路由到
/views/master_page/*****.tpl下去 if ($masterPage) { $masterPage =
‘/’ === $masterPage[0] ? substr($masterPage, 1) : (‘master_page’
.’/’. $masterPage); } //是还是不是设置模板目录 if ($setTemplateDir) {
$templateDir = VIEWPATH;
$this->smarty->setTemplateDir($templateDir); } } /** *
压缩js、css能源文件(优化) * @return [type] [description] */
private function compressResHandle() {
$this->load->library(‘ResMinifier’); //压缩钦命文件夹下的能源文件
$this->resminifier->compressRes(); } } 点击张开

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<?php
defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
 
class MY_Controller extends CI_Controller {
    public function __construct() {
        parent::__construct();
 
        //压缩jscss资源文件
        $this->compressResHandle();
    }
 
    //==========================使用SMARTY模板引擎================================//
    /* Smarty母版页文件路径 */
    protected $masterPage = ‘default.tpl’;
    /* 视图文件路径*/
    protected $smartyView;
    /* 要赋值给smarty视图的数据*/
    protected $smartyData = [];
    /* 资源文件*/
    protected $_resLink = [‘js’=>[], ‘css’=>[]];
 
    /**
     * 使用母版页输出一个视图
     * @return [type] [description]
     */
    protected function displayView($viewName = null, $masterPage = null) {
        //为空则选用默认母版
        if ($masterPage == null) $masterPage = $this->masterPage;
        //获取视图的输出内容
        $viewContent = $this->_fetchView($this->smartyData, $viewName, $masterPage);
 
        $output = ”;
 
        //添加css Link
        foreach ($this->_resLink[‘css’] as $v) {
            $output .= res_link($v);
        }
 
        //内容部分
        $output .= $viewContent;
        //尾部添加js 链接
        foreach ($this->_resLink[‘js’] as $v) {
            $output .= res_link($v);
        }
        //发送最终输出结果以及服务器的 HTTP 头到浏览器
 
        $this->output->_display($output);
        return $output;
    }
 
    private function _fetchView($smartyData, &$viewName, &$masterPage) {
        if ($viewName == null) $viewName = $this->smartyView;
 
        if (empty($this->smarty)) {
            require_once SMARTY_DIR.’Smarty.class.php’;
            $this->smarty = new Smarty();
            $this->smarty->setCompileDir(APPPATH . ‘cache/’);
            $this->smarty->setCacheDir(APPPATH . ‘cache/’);
        }
 
        //设置视图真实路径
        $this->_getViewDir(true, $viewName, $masterPage, $templateDir);
 
        foreach ($smartyData as $k => $v) {
            $this->smarty->assign($k, $v);
        }
 
        if (empty($masterPage)) {
            return $this->smarty->fetch($viewName);
        } else {
            $this->smarty->assign(‘VIEW_MAIN’, $viewName);
            return $this->smarty->fetch($masterPage);
        }
    }
 
    /**
     * 资源路径
     * @param [type] $filePath [description]
     */
    protected function addResLink($filePath) {
        list($filePath, $query) = explode(‘?’, $filePath . ‘?’);
        $extension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
        foreach ($this->_resLink as $v) {
            if (false === array_search($filePath, $this->_resLink[$extension])) {
                $this->_resLink[$extension][] = $query == null ? $filePath : $filePath .’?’. $query;
            }
        }
 
        return $this;
    }
 
    private function _getViewDir($setTemplateDir, &$viewName, &$masterPage = null, &$templateDir) {
        if (‘/’ === $viewName[0]) $viewName = substr($viewName, 1);
 
        //是否使用模板,有,则路由到 /views/master_page/*****.tpl下去
        if ($masterPage) {
            $masterPage = ‘/’ === $masterPage[0] ? substr($masterPage, 1) : (‘master_page’ .’/’. $masterPage);
        }
 
        //是否设置模板目录
        if ($setTemplateDir) {
            $templateDir = VIEWPATH;
            $this->smarty->setTemplateDir($templateDir);
        }
    }
 
    /**
     * 压缩js、css资源文件(优化)
     * @return [type] [description]
     */
    private function compressResHandle() {
        $this->load->library(‘ResMinifier’);
        //压缩指定文件夹下的资源文件
        $this->resminifier->compressRes();
    }
}
 
点击打开

ResMinifier.php

PHP

<?php defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
/** * 能源压缩类 */ class ResMinifier { /** 需求收缩的财富目录*/
public $compressResDir = [‘css’, ‘js’]; /**
忽略压缩的路径,比方此处是js/icon开始的路径忽略压缩*/ public
$compressResIngorePrefix = [‘js/icon’]; /** 财富根目录*/ public
$resRootDir; /** 能源版本文件路线*/ private $resStatePath; public
function __construct() { $this->resRootDir = WEBROOT . ‘www/’;
$this->resState帕特h = WEBROOT . ‘www/resState.php’; } public function
compressRes() { //获取贮存版本的财富文件 $resState =
$this->getResState(); $count = 0; //起先遍历须要减小的财富目录
foreach ($this->compressResDir as $resDir) { foreach (new
RecursiveIteratorIterator(new
RecursiveDirectoryIterator($this->resRootDir . $resDir ,
FilesystemIterator::SKIP_DOTS)) as $file) { //获取该能源文件的相对路径$filePath = str_replace(‘\’, ‘/’, $file->getRealPath());
//获取文件绝对路线 $object = substr($filePath,
strlen($this->resRootDir)); //总括文件的版本号 $state =
$this->_getResStateVersion($filePath); //获取文件的多少个参数值 if
(true !== $this->getObjectInfo($object, $minObject, $needCompress,
$state, $extension)) { continue; } //压缩文件的相对路线 $minFilePath =
str_replace(‘\’, ‘/’, $this->resRootDir. $minObject);
//************此处p判定是最器重片段之一*****************//
//判别文件是不是存在且已经转移过 if (isset($resState[$object]) &&
$resState[$object] == $state && isset($resState[$minObject]) &&
file_exists($minFilePath)) { continue; } //确认保证/www/min/目录可写
$this->_ensureWritableDir(dirname($minFilePath)); if ($needCompress)
{ $this->compressResFileAndSave($filePath, $minFilePath); } else {
copy($filePath, $minFilePath); } $resState[$object] = $state;
$resState[$minObject] = ”; $count++; if ($count == 50) {
$this->_saveResState($resState); $count = 0; } } } if($count)
$this->_saveResState($resState); } /** * 获取能源文件有关消息 *
@param [type] $object 能源文件路径 (www/css/home/index.css) * @param
[type] $minObject 压缩能源文件路线 (www/min/css/home/index.ae123a.css)
* @param [type] $needCompress 是或不是要求压缩 * @param [type] $state
文件版本号 * @param [type] $extension 文件名后缀 * @return [type]
[description] */ public function getObjectInfo($object, &$minObject,
&$needCompress, &$state, &$extension) { //获取财富相对路线 $filePath =
$this->resRootDir . $object; //判定财富是还是不是存在 if
(!file_exists($filePath)) return “资源文件一纸空文{$filePath}”; //版本号
$state = $this-> _getResStateVersion($filePath); //文件名后缀
$extension = pathinfo($filePath, PATHINFO_EXTENSION); //是还是不是要收缩$needCompress = true; //决断能源文件是不是是以 .min.css或许.min.js结尾的
//此类结尾日常都以已缩减过,举个例子jquery.min.js,就不用再压缩了 if
(str_end_with($object, ‘.min.’.$extension, true)) {
//压缩后的财富贮存路线,放在 /www/min/ 目录下 $minObject =
‘min/’.substr($object, 0, strlen($object) – strlen($extension) – 4) .
$state .’.’. $extension; $needCompress = false; } else if
(in_array($extension, $this->compressResDir)) {
//此处是供给减小的文件目录 $minObject = ‘min/’.substr($object, 0,
strlen($object) – strlen($extension)) . $state . ‘.’ . $extension;
//看看是还是不是是忽略的路径前缀 foreach ($this->compressResIngorePrefix as
$v) { if (str_start_with($object, $v, true)) { $needCompress = false;
} } } else { $minObject = ‘min/’.$object; $needCompress = false; }
return true; } /** * 获取寄存财富版本的文书 * 它是放在八个数组里 *
$resState = array( * ‘文件路线’ => ‘对应的版本号’, * ‘文件路线’
=> ‘对应的本子号’, * ‘文件路线’ => ‘对应的本子号’, * ); *
@return [type] [description] */ public function getResState() { if
(file_exists($this->resStatePath)) { require $this->resStatePath;
return $resState; } return []; } /** *
总括文件的版本号,那几个是依照测算文件MD5散列值得到版本号 *
只要文件内容改换了,所总计获得的散列值就能够分歧 *
用于剖断资源文件是或不是有改造过 * @param [type] $filePath
[description] * @return [type] [description] */ public function
_getResStateVersion($filePath) { return
base_convert(crc32(md5_file($filePath)), 10, 36); } /** *
确定保证目录可写 * @param [type] $dir [description] * @return [type]
[description] */ private function _ensureWritableDir($dir) { if
(!file_exists($dir)) { @mkdir($dir, 0777, true); @chmod($dir, 0777); }
else if (!is_writable($dir)) { @chmod($dir, 0777); if
(!is_writable($dir)) { show_error(‘目录’.$dir.’不可写’); } } } /**
* 将收缩后的财富文件写入到/www/min/下去 * @param [type] $filePath
[description] * @param [type] $minFilePath [description] *
@return [type] [description] */ private function
compressResFileAndSave($filePath, $minFilePath) { if
(!file_put_contents($minFilePath,
$this->compressResFile($filePath))) {
//$CI->exceptions->show_exception(“写入文件{$minFilePath}退步”);
show_error(“写入文件{$minFilePath}失利”, -1); } } /** * 压缩财富文件
* @param [type] $filePath [description] * @return [type]
[description] */ private function compressResFile($filePath) {
$extension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION)); if
($extension === ‘js’) { require_once ‘JShrink/Minifier.php’; return
JShrinkMinifier::minify(file_get_contents($filePath)); } else if
($extension ===’css’) { $content = file_get_contents($filePath);
$content =
preg_replace(‘!/*[^*]**+([^/][^*]**+)*/!’, ”,
$content); $content = str_replace([“rn”, “r”, “n”], ”,
$content); $content = preg_replace(‘/([{}),;:>])s+/’, ‘$1’,
$content); $content = preg_replace(‘/s+([{}),;:>])/’, ‘$1’,
$content); $content = str_replace(‘;}’, ‘}’, $content); return
$content; } else {
//$CI->exceptions->show_exception(“不协助压缩{extension}文件[$filePath]”);
show_error(“不协理压缩{extension}文件[$filePath]”, -1); } } private
function _saveResState($resState) { ksort($resState); $content =
“<?phpnn$resState = array(n”; foreach ($resState as $k =>
$v) { $content .= “t ‘$k’ => ‘$v’,n”; } $content .= “);nn”;
file_put_contents($this->resStatePath, $content); } } 点击打开

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<?php
defined(‘BASEPATH’) OR exit(‘No direct script access allowed’);
/**
* 资源压缩类
*/
class ResMinifier {
    /** 需要压缩的资源目录*/
    public $compressResDir = [‘css’, ‘js’];
    /** 忽略压缩的路径,例如此处是js/icon开头的路径忽略压缩*/
    public $compressResIngorePrefix = [‘js/icon’];
    /** 资源根目录*/
    public $resRootDir;
    /** 资源版本文件路径*/
    private $resStatePath;
 
    public function __construct() {
        $this->resRootDir = WEBROOT . ‘www/’;
        $this->resStatePath = WEBROOT . ‘www/resState.php’;
    }
 
    public function compressRes() {
        //获取存放版本的资源文件
        $resState = $this->getResState();
        $count = 0;
 
        //开始遍历需要压缩的资源目录
        foreach ($this->compressResDir as $resDir) {
            foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($this->resRootDir . $resDir , FilesystemIterator::SKIP_DOTS)) as $file) {
                //获取该资源文件的绝对路径
                $filePath = str_replace(‘\’, ‘/’, $file->getRealPath());
 
                //获取文件相对路径
                $object = substr($filePath, strlen($this->resRootDir));
 
                //计算文件的版本号
                $state = $this->_getResStateVersion($filePath);
 
                //获取文件的几个参数值
                if (true !== $this->getObjectInfo($object, $minObject, $needCompress, $state, $extension)) {
                    continue;
                }
 
                //压缩文件的绝对路径
                $minFilePath = str_replace(‘\’, ‘/’, $this->resRootDir. $minObject);
 
                //************此处p判断是最重要部分之一*****************//
                //判断文件是否存在且已经改动过
                if (isset($resState[$object]) && $resState[$object] == $state && isset($resState[$minObject]) && file_exists($minFilePath)) {
                    continue;
                }
 
                //确保/www/min/目录可写
                $this->_ensureWritableDir(dirname($minFilePath));
 
                if ($needCompress) {
                    $this->compressResFileAndSave($filePath, $minFilePath);
                } else {
                    copy($filePath, $minFilePath);
                }
 
                $resState[$object] = $state;
                $resState[$minObject] = ”;
                $count++;
 
                if ($count == 50) {
                    $this->_saveResState($resState);
                    $count = 0;
                }
 
            }
        }
        if($count) $this->_saveResState($resState);
    }
 
    /**
     * 获取资源文件相关信息
     * @param  [type] $object       资源文件路径 (www/css/home/index.css)
     * @param  [type] $minObject    压缩资源文件路径 (www/min/css/home/index.ae123a.css)
     * @param  [type] $needCompress 是否需要压缩
     * @param  [type] $state        文件版本号
     * @param  [type] $extension    文件名后缀
     * @return [type]               [description]
     */
    public function getObjectInfo($object, &$minObject, &$needCompress, &$state, &$extension) {
        //获取资源绝对路径
        $filePath = $this->resRootDir . $object;
        //判断资源是否存在
        if (!file_exists($filePath)) return "资源文件不存在{$filePath}";
        //版本号
        $state = $this-> _getResStateVersion($filePath);
        //文件名后缀
        $extension = pathinfo($filePath, PATHINFO_EXTENSION);
        //是否要压缩
        $needCompress = true;
 
        //判断资源文件是否是以 .min.css或者.min.js结尾的
        //此类结尾一般都是已压缩过,例如jquery.min.js,就不必再压缩了
        if (str_end_with($object, ‘.min.’.$extension, true)) {
            //压缩后的资源存放路径,放在 /www/min/ 目录下
            $minObject = ‘min/’.substr($object, 0, strlen($object) – strlen($extension) – 4) . $state .’.’. $extension;
            $needCompress = false;
        } else if (in_array($extension, $this->compressResDir)) {
            //此处是需要压缩的文件目录
            $minObject = ‘min/’.substr($object, 0, strlen($object) – strlen($extension)) . $state . ‘.’ . $extension;
            //看看是否是忽略的路径前缀
            foreach ($this->compressResIngorePrefix as $v) {
                if (str_start_with($object, $v, true)) {
                    $needCompress = false;
                }
            }
        } else {
            $minObject = ‘min/’.$object;
            $needCompress = false;
        }
        return true;
    }
 
    /**
     * 获取存放资源版本的文件
     * 它是放在一个数组里
     * $resState = array(
     *         ‘文件路径’ => ‘对应的版本号’,
     *         ‘文件路径’ => ‘对应的版本号’,
     *         ‘文件路径’ => ‘对应的版本号’,
     *     );
     * @return [type] [description]
     */
    public function getResState() {
        if (file_exists($this->resStatePath)) {
            require $this->resStatePath;
            return $resState;
        }
        return [];
    }
 
    /**
     * 计算文件的版本号,这个是根据计算文件MD5散列值得到版本号
     * 只要文件内容改变了,所计算得到的散列值就会不一样
     * 用于判断资源文件是否有改动过
     * @param  [type] $filePath [description]
     * @return [type]           [description]
     */
    public function _getResStateVersion($filePath) {
        return base_convert(crc32(md5_file($filePath)), 10, 36);
    }
 
    /**
     * 确保目录可写
     * @param  [type] $dir [description]
     * @return [type]      [description]
     */
    private function _ensureWritableDir($dir) {
        if (!file_exists($dir)) {
            @mkdir($dir, 0777, true);
            @chmod($dir, 0777);
        } else if (!is_writable($dir)) {
            @chmod($dir, 0777);
            if (!is_writable($dir)) {
                show_error(‘目录’.$dir.’不可写’);
            }
        }
    }
 
    /**
     * 将压缩后的资源文件写入到/www/min/下去
     * @param  [type] $filePath    [description]
     * @param  [type] $minFilePath [description]
     * @return [type]              [description]
     */
    private function compressResFileAndSave($filePath, $minFilePath) {
        if (!file_put_contents($minFilePath, $this->compressResFile($filePath))) {
 
            //$CI->exceptions->show_exception("写入文件{$minFilePath}失败");
            show_error("写入文件{$minFilePath}失败", -1);
        }
    }
 
    /**
     * 压缩资源文件
     * @param  [type] $filePath [description]
     * @return [type]           [description]
     */
    private function compressResFile($filePath) {
        $extension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
        if ($extension === ‘js’) {
            require_once ‘JShrink/Minifier.php’;
            return JShrinkMinifier::minify(file_get_contents($filePath));
        } else if ($extension ===’css’) {
            $content = file_get_contents($filePath);
            $content = preg_replace(‘!/*[^*]**+([^/][^*]**+)*/!’, ”, $content);
            $content = str_replace(["rn", "r", "n"], ”, $content);
            $content = preg_replace(‘/([{}),;:>])s+/’, ‘$1’, $content);
            $content = preg_replace(‘/s+([{}),;:>])/’, ‘$1’, $content);
            $content = str_replace(‘;}’, ‘}’, $content);
            return $content;
        } else {
            //$CI->exceptions->show_exception("不支持压缩{extension}文件[$filePath]");
            show_error("不支持压缩{extension}文件[$filePath]", -1);
 
        }
    }
 
    private function _saveResState($resState) {
        ksort($resState);
        $content = "<?phpnn$resState = array(n";
        foreach ($resState as $k => $v) {
            $content .= "t ‘$k’ => ‘$v’,n";
        }
        $content .= ");nn";
        file_put_contents($this->resStatePath, $content);
    }
 
}
 
点击打开

Common.php

PHP

<?php /** * 输出 HttpHead 中的能源总是。 css/js 自动推断真实路线
* @param string 文件路线 * @return string */ function
res_link($file) { $file = res_path($file, $extension); if ($extension
=== ‘css’) { return ‘<link rel=”stylesheet” type=”text/css” href=”‘ .
$file . ‘”/>’; } else if ($extension === ‘js’) { return ‘<script
type=”text/javascript” src=”‘.$file.'”></script>’; } else {
return false; } } /** * 智能路由财富实际路线 * @param string 路径 *
@param string 扩展名 * @return string 真实路线 */ function
res_path($file, &$extension) { //检查是或不是留存询问字符串 list($file,
$query) = explode(‘?’, $file . ‘?’); //取得扩大名 $extension =
strtolower(pathinfo($file, PATHINFO_EXTENSION)); // $file =
str_replace(‘\’, ‘/’, $file); //取妥贴前调整器名 global $class; if
($class == null) exit(‘can not get class name’); $className =
strtolower($class); //此处的平整是那般: //比如,借使不加 /
,Home调节器对应的格式是: index.css,那么
此处的路线会形成css/home/index.css //即便有 / ,调整器的格式能够是
/main.css,那么这里的路线会形成 css/main.css(公用的css类) if (‘/’ !==
$file[0]) { //index.css => css/home/index.css $object = $extension
.’/’. $className .’/’ . $file; } else { // /css/main.css 也许 /main.css
=> css/main.css $object = substr($file, 1); //若object是 main.css
,则自动抬高 扩充名目录 => css/main.css if (0 !==
strncasecmp($extension, $object, strlen($extension))) { $object =
$extension . ‘/’ . $object; } } //能源真实路线 $filepath =
WEBROOT.’www/’.$object; //替换压缩版本,那有些逻辑与公事收缩逻辑对应 if
(in_array($extension, array(‘css’, ‘js’))) {
if(!str_start_with($object, ‘min/’) &&
file_exists(APPPATH.’libraries/ResMinifier.php’)) { require_once
APPPATH.’libraries/ResMinifier.php’; $resminifier = new Res迷你fier();
//获取贮存能源版本的文本的数组变量 $resState =
$resminifier->getResState(); //总结取伏贴前文件版本号 $state =
$resminifier->_getResStateVersion($filepath); //推断该版本号是或不是留存
if (isset($resState[$object])) { //推断是或不是是.min.css或.min.js结尾 if
(str_end_with($object, ‘.min.’.$extension)) {
//将版本号拼接上去,然后拿走min的文书路径 $minObject =
‘min/’.substr($object, 0, strlen($object) – strlen($extension) – 4) .
$state . ‘.’ . $extension; } else {
//将版本号拼接上去,然后拿走min的公文路线 $minObject =
‘min/’.substr($object, 0, strlen($object) – strlen($extension)) . $state
. ‘.’ . $extension; } //决断min的路径是或不是留存在$resState里面 if
(isset($resState[$minObject])) { $object = $minObject; $query = ”; }
} } $file = RES_BASE_URL . $object; } return ($query == null) ? $file
: ($file .’?’. $query); } /** * 剖断 subject 是或不是以 search初步,
参数内定是不是忽略大小写 * @param [type] $subject [description] *
@param [type] $search [description] * @param boolean $ignore_case
[description] * @return [type] [description] */ function
str_start_with($subject, $search, $ignore_case = false) { $len2 =
strlen($search); if (0 === $len2) return true; $len1 = strlen($subject);
if ($len1 < $len2) return false; if ($ignore_case) { return 0 ===
strncmp($subject, $search, $len2); } else { return 0 ===
strncasecmp($subject, $search, $len2); } } /** * 判别 subject 是不是以
search结尾, 参数钦命是或不是忽略大小写 * @param [type] $subject
[description] * @param [type] $search [description] * @param
boolean $ignore_case [description] * @return [type]
[description] */ function str_end_with($subject, $search,
$ignore_case = false) { $len2 = strlen($search); if (0 === $len2)
return true; $len1 = strlen($subject); if ($len2 > $len1) return
false; if ($ignore_case) { return 0 === strcmp(substr($subject, $len1 –
$len2), $search); } else { return 0 === strcasecmp(substr($subject,
$len1 – $len2), $search); } } 点击展开

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<?php
    /**
     * 输出 HttpHead 中的资源连接。 css/js 自动判断真实路径
     * @param  string  文件路径
     * @return string      
     */
    function res_link($file) {
        $file = res_path($file, $extension);
 
        if ($extension === ‘css’) {
           return ‘<link rel="stylesheet" type="text/css" href="’%20.%20$file%20.%20’"/>’;
        } else if ($extension === ‘js’) {
            return ‘<script type="text/javascript" src="’.$file.’"></script>’;
        } else {
            return false;
        }
    }
 
    /**
     * 智能路由资源真实路径
     * @param  string      路径
     * @param  string      扩展名
     * @return string       真实路径
     */
    function res_path($file, &$extension) {
        //检查是否存在查询字符串
        list($file, $query) = explode(‘?’, $file . ‘?’);
        //取得扩展名
        $extension = strtolower(pathinfo($file, PATHINFO_EXTENSION));
        //
        $file = str_replace(‘\’, ‘/’, $file);
        //取得当前控制器名
        global $class;
        if ($class == null) exit(‘can not get class name’);
        $className = strtolower($class);
 
        //此处的规则是这样:
        //例如,如果不加 / ,Home控制器对应的格式是: index.css,那么 此处的路径会变成css/home/index.css
        //假如有 / ,控制器的格式可以是 /main.css,那么此处的路径会变成 css/main.css(公用的css类)
        if (‘/’ !== $file[0]) {
            //index.css => css/home/index.css
            $object = $extension .’/’. $className .’/’ . $file;
        } else {
            // /css/main.css 或者 /main.css => css/main.css
            $object = substr($file, 1);
 
            //若object是 main.css ,则自动加上 扩展名目录 => css/main.css
            if (0 !== strncasecmp($extension, $object, strlen($extension))) {
                $object = $extension . ‘/’ . $object;
            }
        }
        //资源真实路径
        $filepath = WEBROOT.’www/’.$object;
 
        //替换压缩版本,这部分逻辑与文件压缩逻辑对应
        if (in_array($extension, array(‘css’, ‘js’))) {
            if(!str_start_with($object, ‘min/’) && file_exists(APPPATH.’libraries/ResMinifier.php’)) {
                require_once APPPATH.’libraries/ResMinifier.php’;
                $resminifier = new ResMinifier();
                //获取存放资源版本的文件的数组变量
                $resState = $resminifier->getResState();
                //计算得到当前文件版本号
                $state = $resminifier->_getResStateVersion($filepath);
                //判断该版本号是否存在
                if (isset($resState[$object])) {
                    //判断是否是.min.css或.min.js结尾
                    if (str_end_with($object, ‘.min.’.$extension)) {
                        //将版本号拼接上去,然后得到min的文件路径
                        $minObject = ‘min/’.substr($object, 0, strlen($object) – strlen($extension) – 4) . $state . ‘.’ . $extension;
                    } else {
                        //将版本号拼接上去,然后得到min的文件路径
                        $minObject = ‘min/’.substr($object, 0, strlen($object) – strlen($extension)) . $state . ‘.’ . $extension;
                    }
                    //判断min的路径是否存在在$resState里面
                     if (isset($resState[$minObject])) {
                        $object = $minObject;
                        $query = ”;
                     }
                }
 
            }
 
            $file = RES_BASE_URL . $object;
        }
 
        return ($query == null) ? $file : ($file .’?’. $query);
 
    }
 
    /**
     * 判断 subject 是否以 search开头, 参数指定是否忽略大小写
     * @param  [type]  $subject     [description]
     * @param  [type]  $search      [description]
     * @param  boolean $ignore_case [description]
     * @return [type]               [description]
     */
    function str_start_with($subject, $search, $ignore_case = false) {
        $len2 = strlen($search);
        if (0 === $len2) return true;
        $len1 = strlen($subject);
        if ($len1 < $len2) return false;
        if ($ignore_case) {
            return 0 === strncmp($subject, $search, $len2);
        } else {
            return 0 === strncasecmp($subject, $search, $len2);
        }
    }
 
    /**
     * 判断 subject 是否以 search结尾, 参数指定是否忽略大小写
     * @param  [type]  $subject     [description]
     * @param  [type]  $search      [description]
     * @param  boolean $ignore_case [description]
     * @return [type]               [description]
     */
    function str_end_with($subject, $search, $ignore_case = false) {
        $len2 = strlen($search);
        if (0 === $len2) return true;
        $len1 = strlen($subject);
        if ($len2 > $len1) return false;
        if ($ignore_case) {
            return 0 === strcmp(substr($subject, $len1 – $len2), $search);
        } else {
            return 0 === strcasecmp(substr($subject, $len1 – $len2), $search);
        }
    }
 
点击打开

$resState.php(里面包车型大巴代码是自动生成的)

XHTML

<?php $resState = array( ‘css/home/index.css’ => ‘gwy933’,
‘js/echarts-all.min.js’ => ‘wqrf1c’, ‘js/home/index.js’ =>
‘s2z6f5’, ‘js/icon.js’ => ‘pgcyih’, ‘js/icon_home.js’ =>
‘zhl9iu’, ‘js/ion.rangeSlider.min.js’ => ‘akq381’,
‘js/jquery-ui-autocomplete.js’ => ‘8nzacv’, ‘js/jquery-ui.min.js’
=> ‘i6tw8z’, ‘js/jquery.all.min.js’ => ‘d2w76v’,
‘js/jquery.city.js’ => ‘toxdrf’, ‘js/jquery.easydropdown.min.js’
=> ‘2ni3i0’, ‘js/jquery.matrix.js’ => ‘3vrqkk’,
‘js/jquery.mobile.all.min.js’ => ‘ernu7r’, ‘js/jquery.qrcode.min.js’
=> ‘yuhnsj’, ‘js/jquery.tinyscrollbar.min.js’ => ‘oakk3c’,
‘js/mobiscroll.custom.min.js’ => ‘kn8h2e’, ‘js/store.min.js’ =>
‘n50jwr’, ‘js/swiper.animate1.0.2.min.js’ => ‘mm27zc’,
‘js/swiper.min.js’ => ‘jicwhh’, ‘min/css/home/index.6a4e83eb.css’
=> ”, ‘min/css/home/index.gwy933.css’ => ”,
‘min/css/home/index.puzbnf.css’ => ”,
‘min/css/home/index.thv8x7.css’ => ”,
‘min/js/echarts-all.76025ee0.js’ => ”,
‘min/js/echarts-all.wqrf1c.js’ => ”, ‘min/js/home/index.65363d41.js’
=> ”, ‘min/js/home/index.s2z6f5.js’ => ”,
‘min/js/icon.5bbd4db9.js’ => ”, ‘min/js/icon.pgcyih.js’ => ”,
‘min/js/icon_home.7fe74076.js’ => ”, ‘min/js/icon_home.zhl9iu.js’
=> ”, ‘min/js/ion.rangeSlider.261d8ed1.js’ => ”,
‘min/js/ion.rangeSlider.akq381.js’ => ”,
‘min/js/jquery-ui-autocomplete.1f3bb62f.js’ => ”,
‘min/js/jquery-ui-autocomplete.8nzacv.js’ => ”,
‘min/js/jquery-ui.418e9683.js’ => ”, ‘min/js/jquery-ui.i6tw8z.js’
=> ”, ‘min/js/jquery.all.2f248267.js’ => ”,
‘min/js/jquery.all.d2w76v.js’ => ”, ‘min/js/jquery.city.6b036feb.js’
=> ”, ‘min/js/jquery.city.toxdrf.js’ => ”,
‘min/js/jquery.easydropdown.2ni3i0.js’ => ”,
‘min/js/jquery.easydropdown.98fa138.js’ => ”,
‘min/js/jquery.matrix.3vrqkk.js’ => ”,
‘min/js/jquery.matrix.dfe2a44.js’ => ”,
‘min/js/jquery.mobile.all.3539ebb7.js’ => ”,
‘min/js/jquery.mobile.all.ernu7r.js’ => ”,
‘min/js/jquery.qrcode.7d9738b3.js’ => ”,
‘min/js/jquery.qrcode.yuhnsj.js’ => ”,
‘min/js/jquery.tinyscrollbar.578e4cb8.js’ => ”,
‘min/js/jquery.tinyscrollbar.oakk3c.js’ => ”,
‘min/js/mobiscroll.custom.4a684f66.js’ => ”,
‘min/js/mobiscroll.custom.kn8h2e.js’ => ”,
‘min/js/store.536545cb.js’ => ”, ‘min/js/store.n50jwr.js’ => ”,
‘min/js/swiper.4650ad75.js’ => ”,
‘min/js/swiper.animate1.0.2.517f82e8.js’ => ”,
‘min/js/swiper.animate1.0.2.mm27zc.js’ => ”,
‘min/js/swiper.jicwhh.js’ => ”, ); 点击展开

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<?php
 
$resState = array(
     ‘css/home/index.css’ => ‘gwy933’,
     ‘js/echarts-all.min.js’ => ‘wqrf1c’,
     ‘js/home/index.js’ => ‘s2z6f5’,
     ‘js/icon.js’ => ‘pgcyih’,
     ‘js/icon_home.js’ => ‘zhl9iu’,
     ‘js/ion.rangeSlider.min.js’ => ‘akq381’,
     ‘js/jquery-ui-autocomplete.js’ => ‘8nzacv’,
     ‘js/jquery-ui.min.js’ => ‘i6tw8z’,
     ‘js/jquery.all.min.js’ => ‘d2w76v’,
     ‘js/jquery.city.js’ => ‘toxdrf’,
     ‘js/jquery.easydropdown.min.js’ => ‘2ni3i0’,
     ‘js/jquery.matrix.js’ => ‘3vrqkk’,
     ‘js/jquery.mobile.all.min.js’ => ‘ernu7r’,
     ‘js/jquery.qrcode.min.js’ => ‘yuhnsj’,
     ‘js/jquery.tinyscrollbar.min.js’ => ‘oakk3c’,
     ‘js/mobiscroll.custom.min.js’ => ‘kn8h2e’,
     ‘js/store.min.js’ => ‘n50jwr’,
     ‘js/swiper.animate1.0.2.min.js’ => ‘mm27zc’,
     ‘js/swiper.min.js’ => ‘jicwhh’,
     ‘min/css/home/index.6a4e83eb.css’ => ”,
     ‘min/css/home/index.gwy933.css’ => ”,
     ‘min/css/home/index.puzbnf.css’ => ”,
     ‘min/css/home/index.thv8x7.css’ => ”,
     ‘min/js/echarts-all.76025ee0.js’ => ”,
     ‘min/js/echarts-all.wqrf1c.js’ => ”,
     ‘min/js/home/index.65363d41.js’ => ”,
     ‘min/js/home/index.s2z6f5.js’ => ”,
     ‘min/js/icon.5bbd4db9.js’ => ”,
     ‘min/js/icon.pgcyih.js’ => ”,
     ‘min/js/icon_home.7fe74076.js’ => ”,
     ‘min/js/icon_home.zhl9iu.js’ => ”,
     ‘min/js/ion.rangeSlider.261d8ed1.js’ => ”,
     ‘min/js/ion.rangeSlider.akq381.js’ => ”,
     ‘min/js/jquery-ui-autocomplete.1f3bb62f.js’ => ”,
     ‘min/js/jquery-ui-autocomplete.8nzacv.js’ => ”,
     ‘min/js/jquery-ui.418e9683.js’ => ”,
     ‘min/js/jquery-ui.i6tw8z.js’ => ”,
     ‘min/js/jquery.all.2f248267.js’ => ”,
     ‘min/js/jquery.all.d2w76v.js’ => ”,
     ‘min/js/jquery.city.6b036feb.js’ => ”,
     ‘min/js/jquery.city.toxdrf.js’ => ”,
     ‘min/js/jquery.easydropdown.2ni3i0.js’ => ”,
     ‘min/js/jquery.easydropdown.98fa138.js’ => ”,
     ‘min/js/jquery.matrix.3vrqkk.js’ => ”,
     ‘min/js/jquery.matrix.dfe2a44.js’ => ”,
     ‘min/js/jquery.mobile.all.3539ebb7.js’ => ”,
     ‘min/js/jquery.mobile.all.ernu7r.js’ => ”,
     ‘min/js/jquery.qrcode.7d9738b3.js’ => ”,
     ‘min/js/jquery.qrcode.yuhnsj.js’ => ”,
     ‘min/js/jquery.tinyscrollbar.578e4cb8.js’ => ”,
     ‘min/js/jquery.tinyscrollbar.oakk3c.js’ => ”,
     ‘min/js/mobiscroll.custom.4a684f66.js’ => ”,
     ‘min/js/mobiscroll.custom.kn8h2e.js’ => ”,
     ‘min/js/store.536545cb.js’ => ”,
     ‘min/js/store.n50jwr.js’ => ”,
     ‘min/js/swiper.4650ad75.js’ => ”,
     ‘min/js/swiper.animate1.0.2.517f82e8.js’ => ”,
     ‘min/js/swiper.animate1.0.2.mm27zc.js’ => ”,
     ‘min/js/swiper.jicwhh.js’ => ”,
);
 
点击打开

 

除此以外附上JShrink这些PHP类的链接给大家下载 

倘诺大家依然以为相当不足OK的话,笔者一向将以此实验项目打包供大家下载下来学习和询问:

四、结语

末尾笔者来享受咱们线上类别的求实完毕方案:

咱俩的类别分线上情况、开荒境况和测量检验景况,在开辟和测量检验情形中,大家每一回访问都会调用压缩文件的接口,然后再对转移的财富文件的轻重缓急是要做剖断的,即便缩减后文件过小,就要求将该财富文件的代码合併到别的能源文件里去,以此裁减不要求的HTTP央求(因为文件太小,能源的下载时间远小于HTTP央求响应所消耗的时光);另三个是图片的拍卖,全数图片都要经过压缩本领经过(举例在: 
这么些网址去收缩图片),在PC端,假诺是小Logo的话,使用图片合併的点子开展优化,详细情形可参照本身的那篇博文:http://www.cnblogs.com/it-cen/p/4618954.html   
而在wap端的图样管理利用的是base64编码情势来拍卖图片,实际情况能够参见本人的那篇博文: 
,当页面输出时,会采纳redis来缓存页面(为何用内部存款和储蓄器来缓存实际不是行使页面缓存,这一个未来再享受给大家)。要是是线上情形,每发二次版本,才会调用一下能源文件裁减这些接口,而且线上的静态能源(css、js、图片)是寄放在Ali云的OSS里的,与大家的应用服务器是分离的。那是我们线上项目标一部分优化技术方案,当然了,还应该有更加多优化技巧,笔者会在后来各样计算和享受出来,方便我们一起读书和交换。

此次博文就享受到此,多谢观望此博文的爱大家。

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图片 7

?>

return count($this->save_info);
}

return FALSE;
}

//
$basename = $this->getBaseName($name,”.”.$ext_name);
$final_filename =
$basename.’-‘.time().’-‘.rand(1,10000).’.’.$ext_name;
$this->final_file_path =
$this->save_file_path.’/’.$final_filename;

/*
 *得到文件的庞大名
 *
 *@param string $filename
 *@access private
 *@return string
 */
function getExtName($filename)
{
$p = pathinfo($filename);

/*
 *检查客户上传文件的花色是或不是合法
 *
 *@access private
 *@return boolean
 */
function checkType($extension)
{
foreach($this->allow_type
as $type){
if(strcasecmp($extension,$type) == 0){
return TRUE;
}
}

return TRUE;
}

//文件大小
if(!$this->checkSize($size)){
$this->error_info[] = ‘您上传的公文:’.$name.’太大’;
continue;
}
//扩展名
if(!$this->checkType($ext_name)){
$this->error_info[] = ‘您上传的文书:’.$name.’违规’;
continue;
}
//不合法上传
if(!is_uploaded_file($tmp_name)){
$this->error_info[] = ‘您上传的文本:’.$name.’属于不合法提交’;
continue;
}

文件上传类代码

if(!move_uploaded_file($tmp_name,$this->final_file_path)){
$this->error_info = $this->user_post_file[‘error’][$i];
continue;
}

function getSaveInfo()
{
return $this->save_info;
}
}

/*
 *检查顾客上传文件的轻重缓急时候合法
 *
 *@param Integer $size
 *@access private
 *@return boolean
 */
function checkSize($size)
{
if($size > $this->max_file_size){
return FALSE;
}

/*
 *收获文件名(不包含扩张名)
 *
 *@param string $filename
 *@param string $type
 *@access private
 *@return boolean
 */
function getBaseName($filename,$ext_name)
{
$basename = basename($filename,$ext_name);

if($num == $num_file ){
echo ‘全体文书上传成功’;
exit;
}else{
echo $num,’个文件上传成功<br/>’;
echo $up->showErrorInfo();
exit;
}
}

文件上传例子

$up = new UploadFile($uploads,’uploads’,1024);
$num = $up->upload();

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