PHP 删除项目中的.svn文件

<?php
/**
* Created by PhpStorm.
* User: kung
* Date: 16-12-23
* Time: 下午2:13
*/
function remove_dir($dir){
$dir_op = dir($dir);
$remove_path = $dir_op->path;
while(false != ($dir_son = $dir_op->read())){
if($dir_son == '.' || $dir_son == '..')
continue;
if(is_dir($remove_path."/".$dir_son)){
remove_dir($remove_path."/".$dir_son);
rmdir($remove_path."/".$dir_son);
}else
unlink($remove_path."/".$dir_son);
}
}

function find_svn($op_dir){
$dir_op = dir($op_dir);

$find_path = $dir_op->path;

while(false != ($dir_son = $dir_op->read())){

if($dir_son == '.' || $dir_son == '..')
continue;
if(is_dir($find_path."/".$dir_son)){
if($dir_son == '.svn'){
remove_dir($find_path."/".$dir_son);
rmdir($find_path."/".$dir_son);
}
find_svn($find_path."/".$dir_son);
}
}
}

$op_dir = dirname(__FILE__)."/test";

find_svn($op_dir);