


Example of how PHP recursively traverses folders to remove comments and compress php source code
这篇文章主要介绍了PHP递归遍历文件夹去除注释并压缩php源代码的方法,涉及php文件与目录的遍历、读取、判断及使用php_strip_whitespace函数删除注释的相关操作技巧,需要的朋友可以参考下
本文实例讲述了PHP递归遍历文件夹去除注释并压缩代码的方法。分享给大家供大家参考,具体如下:
<?php // ===================文件夹 递归 去除PHP注释并压缩========================= header("content-type:text/html;charset=utf-8"); $dir = "D:\sound\admin--"; // 需要转换的文件路径。 $fdir = "D:\sound\admin"; // 最终要放到的位置。 $dir = str_replace('\\','/',$dir); $fdir = str_replace('\\','/',$fdir); if($dir == $fdir){ echo "源文件与现在文件路径冲突,换一个路径吧"; exit; } $arr = array($dir,$fdir); ergodic($dir,$arr); // 递归的时候目录名一直是改变的。所以用一个数组另外存储两个路径,这样创建文件或者目录的时候就可以找到在那个目录下。 md($fdir); function md($md){ // 创建目录 if(!is_dir($md) && !empty($md) ){ mkdir($md,0777); } } // 递归 function ergodic($dirname,$arr){ if(is_dir($dirname)){ $handle = opendir($dirname); $a = $arr[1].substr($dirname,strlen($arr[0]) ); md($a); while($filename = readdir($handle)){ // 读取一个打开的文件名。 if($filename != '.' && $filename != '..'){ $dir = $dirname.'/'.$filename; // 拼接目录名 if(is_dir($dir)){ ergodic($dir,$arr); // 递归 }else{ file_put_contents($a.'/'.$filename,replace_php_src($dir) ); echo $dir." 去注释压缩完成!<br>"; } } } }else{ // 此处无用(因为来的都是目录),如果只转换一个文件,就可以这样使用。 file_put_contents($arr[1].'/'.$dirname,replace_php_src($arr[0].'/'.$dirname) ); } } // 去除注释并压缩,heredoc存在的时候去注释不压缩。 function replace_php_src($src){ $contents = file_get_contents($src); $num = substr_count($contents,'<<<'); // heredoc 是否存在。 $str = ""; if($num > 0){ // heredoc 存在。只去除注释不压缩。 $file = token_get_all($contents); // token_get_all() 将提供的源码按 PHP 标记进行分割. for ($i=0; $i < count($file); $i++) { if( is_string($file[$i]) ){ $str .= $file[$i]; }else{ $name = token_name( $file[$i][0] ); // token_name() 获取提供的 PHP 解析器代号的符号名称. if($name == 'T_COMMENT' || $name == 'T_DOC_COMMENT' ){ // 去除注释 continue; }else{ $str .= $file[$i][1]; } } } }else{ $str = php_strip_whitespace($src); // 不存在 heredoc 。因为他会错误解析。 } return $str; }
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