3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(); printf serialize("%s\n", $a); print serialize(base64_encode(serialize($a)));
Output for 5.4.0 - 5.4.27
Parse error: syntax error, unexpected 'serialize' (T_STRING) in /in/AdY9V on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_STRING in /in/AdY9V on line 4
Process exited with code 255.