3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(PHP_INT_MAX, PHP_INT_MAX === 9223372036854775807); var_dump(PHP_INT_MIN, PHP_INT_MIN === -9223372036854775808);
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
int(9223372036854775807) bool(true) int(-9223372036854775808) bool(false)
preferences:
42.76 ms | 407 KiB | 5 Q