PHP_删除目录_code

<?php
$file="nihao";
function deltree($pathName)
{
    $handle=opendir($pathName);
    readdir($handle);
    readdir($handle);

    while (($file=readdir($handle))!==false)
    {
        $file=$pathName.DIRECTORY_SEPARATOR.$file;

        if(is_dir($file))
        {
            deltree($file);
        }else
        {
            if(unlink($file))
            {
                echo "The file $file was be deleted!";
            }else
            {
                echo "The file $file wasn't be deleted!";
            }
        }

    }
    closedir($handle);

    if(rmdir($pathName))
    {
        echo "Dir was be delete!";
    }
    else
    {
        echo "Dir was not be delete!";
    }
}
deltree($file);

?>