php删除指定目录的方法

<?php
/
  Delete a file, or a folder and its contents 
  (recursive algorithm)
  @author Aidan Lister <aidan@php.>
  @version 1.0.3
  @param string  $dirname Directory to delete
  @return bool Returns TRUE on suess, FALSE on failure
 /
function rmdirr($dirname)
{
 // Sanity check
 if (!file_exists($dirname)) {
  return false;
 }
 // Simple delete for a file
 if (is_file($dirname) || is_link($dirname)) {
  return unlink($dirname);
 }
 // Loop through the folder
 $dir = dir($dirname);
 while (false !== $entry = $dir->read()) {
  // Skip pointers
  if ($entry == '.' || $entry == '..') {
   continue;
  }
  // Recurse
  rmdirr($dirname . DIRECTORY_SEPARATOR . $entry);
 }
 // Clean up
 $dir->close();
 return rmdir($dirname);
}
?>