3v4l.org

run code in 300+ PHP versions simultaneously
<?php function IP2number($ip) { return sprintf('%u', ip2long($ip)); } echo ip2long('0.0.0.0'),"\r\n"; echo ip2long('0.0.0.1'),"\r\n"; echo ip2long('255.255.255.254'),"\r\n"; echo ip2long('255.255.255.255'),"\r\n"; echo "\r\n"; echo IP2number('0.0.0.0'),"\r\n"; echo IP2number('0.0.0.1'),"\r\n"; echo IP2number('255.255.255.254'),"\r\n"; echo IP2number('255.255.255.255'),"\r\n";
Output for 4.3.0 - 4.3.4, 5.2.5 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.20, 8.3.0 - 8.3.8
0 1 4294967294 4294967295 0 1 4294967294 4294967295
Output for 5.2.4
0 1 4294967294 -1 0 1 4294967294 18446744073709551615
Output for 4.3.5 - 4.3.11, 4.4.0 - 4.4.9, 5.0.2 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.3
0 1 4294967294 -1 0 1 4294967294 4294967295
Output for 5.0.0 - 5.0.1
0 1 4294967294 0 1 4294967294 0

preferences:
216.11 ms | 402 KiB | 348 Q