3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo dechex(PHP_INT_MAX * 2 + 1); echo "\n"; echo dechex(-1);
Output for 4.4.0 - 4.4.9, 5.0.5 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
0 ffffffffffffffff
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.4
Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/M4v3C on line 2 1 ffffffffffffffff