目录操作

 

1.查看目录大小

 

disk_free_space();

disk_total_space();

function directory_size($directory) {
      $directorySize=0;
      /* Open the directory and read its contents. */ 
      if ($dh = @opendir($directory)) {
         /* Iterate through each directory entry. */
         while (($filename = readdir ($dh))) {
            /* Filter out some of the unwanted directory entries. */
            if ($filename != "." && $filename != "..")
            {
               // File, so determine size and add to total.
               if (is_file($directory."/".$filename))
                  $directorySize += filesize($directory."/".$filename);
                  // New directory, so initiate recursion. */
                  if (is_dir($directory."/".$filename))
                     $directorySize += directory_size($directory."/".$filename);
            }
        } #endWHILE
     } #endIF
     @closedir($dh);
     return $directorySize;
   } #end directory_size()

 

2.删除目录

<?php
   function delete_directory($dir)
   {
      if ($dh = @opendir($dir))
      {
         /* Iterate through directory contents. */
         while (($file = readdir ($dh)) != false)
         {
            if (($file == ".") || ($file == "..")) continue;
            if (is_dir($dir . '/' . $file))  
               delete_directory($dir . '/' . $file);
            else 
               unlink($dir . '/' . $file);
          } #endWHILE
          @closedir($dh);
          rmdir($dir);
     } #endIF
   } #end delete_directory()
   $dir = "/usr/local/apache2/htdocs/book/chapter10/test/";
   delete_directory($dir);
?>

 

 

3.  创建多级目录

不能使用mkdir('aa/aa'); 建多级目录 .

private function _createDir($dir) {
    return is_dir($dir) or ($this->_createDir(dirname($dir)) and mkdir($dir, 0777));
}