3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a[PHP_INT_MAX] = 22; echo $a[] = 42; var_dump($a);
based on oDb6R
Output for 5.2.10 - 7.1.0
Warning: Cannot add element to the array as the next element is already occupied in /in/4CrrK on line 3 array(1) { [9223372036854775807]=> int(22) }
Output for 4.4.0 - 4.4.9, 5.0.5 - 5.2.9
42array(2) { [9223372036854775807]=> int(22) [-9223372036854775808]=> int(42) }
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/4CrrK on line 2 42array(2) { ["PHP_INT_MAX"]=> int(22) [0]=> int(42) }