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run code in 200+ php & hhvm versions
Bugs & Features
<?php function encode($message, $seed) { return base64_encode($message.$seed); } function decode($data, $seed) { return base64_decode($data); } var_dump($data = encode('hi this is a string','seed123'), decode($data, 'seed123'));
Output for 4.3.0 - 7.2.0
string(36) "aGkgdGhpcyBpcyBhIHN0cmluZ3NlZWQxMjM=" string(26) "hi this is a stringseed123"