Cacher is the code snippet organizer for pro developers

<?php 

function decode($param_message){
    $keyNumber = strlen($param_message)/2;
    $substring = substr($param_message, 5, $keyNumber);
    $substring = str_replace(["@", "#", "?"], " ", $substring); 
    return strrev($substring);
}

$message1 = "0@sn9sirppa@#?ia'jgtvryko1";
$message2 = "q8e?wsellecif@#?sel@#?setuotpazdsy0*b9+mw@x1vj";
$message3 = "aopi?sgnirts@#?sedhtg+p9l!";

echo decode($message1)." ";
echo decode($message2)." ";
echo decode($message3)." ";

?>