<?phpif(isset($_POST['upload'])){    $path="uploaddir/";    $name = $_FILES['userfile']['name'];    $temp = $_FILES['userfile']['tmp_name'];    if(move_uploaded_file($temp, $path . $name)){        echo "success";    }else{        echo "failed";    }}?><form method="post" action="<?php $_SERVER['PHP_SELF']; ?>" enctype="multipart/form-data">    <input type="file" name="userfile" />    <input type="submit" name="upload" value="submit" /></form>