3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $num = (PHP_INT_MAX * 2) + 1; var_dump($num); echo "\n"; echo dechex(-1);
Output for 4.4.0 - 4.4.9, 5.0.5 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
float(1.844674407371E+19) 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/2mJuR on line 2 int(1) ffffffffffffffff