Enpass room from TryHackMe

enpass.php

<?php
/*https://0xsanz.medium.com/en-pass-tryhackme-4b319526b634*/
if($_SERVER["REQUEST_METHOD"] == "POST")
{
    $title = $_POST["title"];
    if (!preg_match('/[a-zA-Z0-9]/i' , $title ))
    {
        $val = explode(",",$title);
        $sum = 0;
        for($i = 0 ; $i < 9; $i++)
        {
            if ( (strlen($val[0]) == 2) and (strlen($val[8]) ==  3 ))
            {
                if ( $val[5] !=$val[8]  and $val[3]!=$val[7] ) 
                    $sum = $sum+ (bool)$val[$i]."<br>"; 
            }
        }
        if ( ($sum) == 9 )
        {
            echo $result;//do not worry you'll get what you need.
            echo " Congo You Got It !! Nice ";
        }
        else
        {
            echo "  Try Try!!";
        }
    }
    else
    {
        echo "  Try Again!! ";
    }
 }
?>