3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(ip2long("255.255.255.255")); var_dump(PHP_INT_MAX);
Output for 5.2.5 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 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
int(4294967295) int(9223372036854775807)
Output for 4.4.0 - 4.4.9, 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.4
int(-1) int(9223372036854775807)
Output for 4.3.5 - 4.3.11, 5.0.2 - 5.0.4
int(-1) Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/V7XW8 on line 3 string(11) "PHP_INT_MAX"
Output for 5.0.0 - 5.0.1
bool(false) Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/V7XW8 on line 3 string(11) "PHP_INT_MAX"
Output for 4.3.0 - 4.3.4
int(4294967295) Notice: Use of undefined constant PHP_INT_MAX - assumed 'PHP_INT_MAX' in /in/V7XW8 on line 3 string(11) "PHP_INT_MAX"

preferences:
182.87 ms | 401 KiB | 329 Q