或者用到的php代码
可能用到的php代码
1.延迟请求文件,模拟网速不好的时候的场景,代码地址如下:
https://gist.github.com/2650596
?
<?php /** * * delay.php?f=file.js&t=100 * * 延时100毫秒加载file.js * * */ //得到扩展名 function get_extend($file_name) { $extend =explode("." , $file_name); $va=count($extend)-1; return $extend[$va]; } /** * begin */ //cdn上存在的各种可能的文件类型 $header = array( 'js' => 'Content-Type: application/x-javascript', 'css' => 'Content-Type: text/css', 'jpg' => 'Content-Type: image/jpg', 'gif' => 'Content-Type: image/gif', 'png' => 'Content-Type: image/png', 'jpeg' => 'Content-Type: image/jpeg', 'swf' => 'Content-Type: application/x-shockwave-flash' ); $filename = $_GET['f']; $R_files = file($_GET['f']); if(empty($type)) { $type = get_extend($filename); } header($header[$type]); ob_flush(); flush(); sleep($_GET['t']); //var_dump($R_files); echo join("\n",$R_files); ?>
?适用方式:
把代码用php文件放到项目目录下,引用目标文件的时候,方式如下:
http://cdn/你的目录/delay.php?f=yourfile.js&t=100
?2.页面逻辑暂停,过一段时间再继续
ob_flush(); flush(); sleep($_GET['t']);
?sleep为php的内置函数,参数为时间,单位秒;要放到PHP后缀的文件下使用,或者要配置下在js文件下使用,或者js后缀的后面加上.php,如 xxx.js.php
?

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