3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = '12d9'; echo ++$a; echo PHP_EOL; echo ++$a;
Output for 4.3.10 - 4.4.9, 5.0.2 - 7.1.0
12e0 13
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
12e0 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/foLOG on line 4 PHP_EOL13