3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $n=PHP_INT_MAX-1; echo $n."\n"; $n+=1; echo $n."\n"; $n+=1; echo $n."\n"; $n+=1; echo $n."\n";
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
9223372036854775806 9223372036854775807 9.2233720368548E+18 9.2233720368548E+18
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/o7oi5 on line 2 -1 0 1 2