Example of deleting related files in a specified directory with php_PHP tutorial

php删除指定目录下的相关文件实例

 

代码如下

代码如下

//删除指定文件夹下的非法文件  function my_del($dir)  {     if(is_dir($dir)){         //打开指定文件夹         if($handle = opendir($dir))         {             while(false !== ($file = readdir($handle)))             {                 if($file !== '.' && $file !== '..')                  {                         my_del($dir.'/'.$file);                  }             }             $res = closedir($handle);         }     }else{         //删掉除图片意外的所有文件         $avatararr = array('180x180.jpg', '30x30.jpg', '45x45.jpg', '90x90.jpg');         $ex = explode('/', $dir);         $endex = end($ex);         if((strripos($endex,'.jpg') === false) || (substr($endex, -4) != '.jpg')){                     //按名称过滤                 @unlink($dir);         } else {                     //按文件实质内容过滤                 $info = @getimagesize($dir);                 if(!$info || $info[2] !=2) {                         @unlink($dir);                 }         }     }  }  $dir='D:/xampp/htdocs/www/avatar001/12/47/';  my_del($dir);

 //删除指定文件夹下的非法文件

 function my_del($dir)
 {
    if(is_dir($dir)){
        //打开指定文件夹
        if($handle = opendir($dir))
        {
            while(false !== ($file = readdir($handle)))
            {
                if($file !== '.' && $file !== '..')
                 {
                        my_del($dir.'/'.$file);
                 }
            }
            $res = closedir($handle);
        }
    }else{
        //删掉除图片意外的所有文件
        $avatararr = array('180x180.jpg', '30x30.jpg', '45x45.jpg', '90x90.jpg');
        $ex = explode('/', $dir);
        $endex = end($ex);
        if((strripos($endex,'.jpg') === false) || (substr($endex, -4) != '.jpg')){
                    //按名称过滤
                @unlink($dir);
        } else {
                    //按文件实质内容过滤
                $info = @getimagesize($dir);
                if(!$info || $info[2] !=2) {
                        @unlink($dir);
                }
        }
    }
 }

 $dir='D:/xampp/htdocs/www/avatar001/12/47/';
 my_del($dir);

http://www.bkjia.com/PHPjc/895549.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/895549.htmlTechArticlephp Delete related files in the specified directory The example code is as follows?php //Delete illegal files in the specified folder function my_del($dir) { if(is_dir($dir)){ //Open the specified folder if($hand...