Online PHP editor | output for NIqJH

<?php

function encrypt($texttocrypt, $ky, $iv)
    {
//    $ky = '5rrdv4lkjdshfkl43bgd'; // Key from file
//    $iv = ;
        try {
            $encrypted = "";
            $length = strlen($texttocrypt);

            $cipher = mcrypt_module_open(MCRYPT_RIJNDAEL_256, '', MCRYPT_MODE_CBC, '');
            mcrypt_generic_init($cipher, $ky, $iv);
            $encrypted = base64_encode(mcrypt_generic($cipher, $texttocrypt));
            mcrypt_generic_deinit($cipher);
            $result1 = bin2hex($iv);
            $result2 = bin2hex($encrypted);
            $result = $result1 . $result2;
            return $result;
        } catch (Exception $e) {
            $this->lastError = "Error while encrypting '".$texttocrypt."' - ".$e->getMessage();
            throw new Exception($this->lastError);
        }
    }

echo encrypt('sup#own#hnf#15', 'jhfjdjj%6s77w', '234ghyjdGtskjd&7d6sj6w6hfkjhvfDw20');

eol versions

based on piUWg

Output for 7.0.6 - 7.2.0: Fatal error: Uncaught Error: Call to undefined function mcrypt_module_open() in /in/NIqJH:11 Stack trace: #0 /in/NIqJH(25): encrypt('sup#own#hnf#15', 'jhfjdjj%6s77w', '234ghyjdGtskjd&...') #1 {main} thrown in /in/NIqJH on line 11
Process exited with code 255.
Output for 5.4.0 - 5.5.34, 5.6.0 - 5.6.20, 7.0.0 - 7.0.5: Warning: mcrypt_generic_init(): Iv size incorrect; supplied length: 34, needed: 32 in /in/NIqJH on line 12 3233346768796a644774736b6a6426376436736a36773668666b6a68766644773230596659385971766d763952656b466867744c6f3035545168484361694b346c737a6b7231782f6d7067454d3d
Output for 5.0.0 - 5.3.29, 5.5.35 - 5.5.38, 5.6.21 - 5.6.28: Fatal error: Call to undefined function mcrypt_module_open() in /in/NIqJH on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected '{' in /in/NIqJH on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1: Parse error: parse error, unexpected '{' in /in/NIqJH on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/NIqJH on line 7
Process exited with code 255.