题目
<?php
require_once('flag.php');
$password_hash = "0e902564435691274142490923013038";
$salt = "f789bbc328a3d1a3";
if(isset($_GET['password']) && md5($salt . $_GET['password']) == $password_hash){
echo $flag;
}
echo highlight_file(__FILE__, true);
?>
得出flag=?