如何在php中删除具有此类扩展名的文件?

要从子目录中删除特定的扩展名文件,可以使用以下功能。例子:

<?php 
function delete_recursively_($path,$match){
   static $deleted = 0,
   $dsize = 0;
   $dirs = glob($path."*");
   $files = glob($path.$match);
   foreach($files as $file){
      if(is_file($file)){
         $deleted_size += filesize($file);
         unlink($file);
         $deleted++;
      }
   }
   foreach($dirs as $dir){
      if(is_dir($dir)){
         $dir = basename($dir) . "/";
         delete_recursively_($path.$dir,$match);
      }
   }
   return "$deleted files deleted with a total size of $deleted_size bytes";
}
?>

e、 g.要删除所有文本文件,可以按如下方式使用:

<?php echo delete_recursively_('/home/username/directory/', '.txt'); ?>