Online PHP editor | output for aionQ

@ 2018-10-30T21:13:48Z

<?php

$X = encrypt("ffffff");

echo "ffffff";

echo $X;

echo decrypt($X);

    /**
     * Returns an encrypted & utf8-encoded
     */
    function encrypt($pure_string) {
	    $encryption_key = 'random_string_here_as_private_key';
	    $iv_size = mcrypt_get_iv_size(MCRYPT_BLOWFISH, MCRYPT_MODE_ECB);
	    $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
	    $encrypted_string = mcrypt_encrypt(MCRYPT_BLOWFISH, $encryption_key, utf8_encode($pure_string), MCRYPT_MODE_ECB, $iv);
	    return $encrypted_string;
    }
    /**
     * Returns decrypted original string
     */
    function decrypt($encrypted_string) {
	    $encryption_key = 'random_string_here_as_private_key';
	    $iv_size = mcrypt_get_iv_size(MCRYPT_BLOWFISH, MCRYPT_MODE_ECB);
	    $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
	    $decrypted_string = mcrypt_decrypt(MCRYPT_BLOWFISH, $encryption_key, $encrypted_string, MCRYPT_MODE_ECB, $iv);
	    return $decrypted_string;
    }

Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Fatal error: Uncaught Error: Call to undefined function mcrypt_get_iv_size() in /in/aionQ:16 Stack trace: #0 /in/aionQ(3): encrypt('ffffff') #1 {main} thrown in /in/aionQ on line 16
Process exited with code 255.
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught Error: Call to undefined function mcrypt_get_iv_size() in /in/aionQ:16 Stack trace: #0 /in/aionQ(3): encrypt('ffffff') #1 {main} thrown in /in/aionQ on line 16
Process exited with code 255.
Output for 5.6.0 - 5.6.40: Fatal error: Call to undefined function mcrypt_get_iv_size() in /in/aionQ on line 16
Process exited with code 255.

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