3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(PHP_INT_MAX); var_dump(mktime(0, 0, 0, 1, 1, 2040)); var_dump(date("M d Y H:i:s", 2147483648));
Output for 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.14
int(9223372036854775807) int(2208985200) string(20) "Jan 19 2038 04:14:08"
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
int(9223372036854775807) bool(false) string(20) "Jan 19 2038 04:14:08"
Output for 4.4.0 - 4.4.9, 5.0.5
int(9223372036854775807) int(2208988800) string(20) "Jan 19 2038 03:14:08"
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/1FX4E on line 3 string(11) "PHP_INT_MAX" int(2208988800) string(20) "Jan 19 2038 03:14:08"
preferences:
107.3 ms | 410 KiB | 5 Q