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PHP简略递归遍历所有目录

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Release: 2016-06-13 12:15:11
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PHP简单递归遍历所有目录

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function list_dir($root){    $dirs = scandir($root);    foreach($dirs as $dir){        if(is_dir($root.DIRECTORY_SEPARATOR.$dir) && (in_array($dir,array('.','..')) != '.')){            echo $root.DIRECTORY_SEPARATOR.$dir.PHP_EOL;            list_dir($root.DIRECTORY_SEPARATOR.$dir);        }    }}list_dir('.');
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值得注意的几点:

1.递归一定要有跳出的条件,否则就是无限循环

2.使用常量DIRECTORY_SEPARATOR替代 "/"可以兼容linux和windows的不同目录分隔符

3.使用is_array($dir,array('.','..')) != '.',而不是substr($dir,0,1) != '.' 是因为linux里面很多隐藏目录都是以"."开头的

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