3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo PHP_INT_MAX; echo 'PHP_INT_MAX + 1: ' . 9223372036854775808; echo '9223372036854775808: ' . 9223372036854775808;
Output for 4.4.0 - 4.4.9, 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
9223372036854775807PHP_INT_MAX + 1: 9.2233720368548E+189223372036854775808: 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/9Hnlb on line 2 PHP_INT_MAXPHP_INT_MAX + 1: 9.2233720368548E+189223372036854775808: 9.2233720368548E+18
preferences:
231.73 ms | 402 KiB | 328 Q