php recursive delete

This function do recursive delete on files and folders in php

function recursiveDelete($str){
if(is_file($str)){
return @unlink($str);
}
elseif(is_dir($str)){
$scan = glob(rtrim($str,’/’).’/*’);
foreach($scan as $index=>$path){
recursiveDelete($path);
}
return @rmdir($str);
}
}