decode

j'ai appris toutes les ficelles des strings

string.php

<?php
    $string1 = "0@sn9sirppa@#?ia'jgtvryko1";
    $string2 = "q8e?wsellecif@#?sel@#?setuotpazdsy0*b9+mw@x1vj";
    $string3 = "aopi?sgnirts@#?sedhtg+p9l!";

    function function_decode($word) {
        $len = strlen($word)/2;
        $sub = substr ($word, 5, $len);
        $rep = str_replace('@#?', ' ', $sub);
        $rev = strrev($rep);
        return $rev;
    }
    echo function_decode($string1).' ';
    echo function_decode($string2).' ';
    echo function_decode($string3);
    
?>