3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php defined('PHP_INT_MAX') or define('PHP_INT_MAX', is_int(0x7FFFFFFF + 1) ? 0x7FFFFFFF : 0x7FFFFFFFFFFFFFFF); $a = array(PHP_INT_MAX => 42); $a[] = 37; var_dump($a);
Output for 5.3.7 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Warning: Cannot add element to the array as the next element is already occupied in /in/6gFtf on line 5 array(1) { [9223372036854775807]=> int(42) }