3v4l.org

run code in 300+ PHP versions simultaneously
<?php $expr = '#^v?([0-9]+)\.([0-9]+)(?:\.([0-9]+))?$#'; $val = 'v12.0'; preg_match($expr, $val, $match); list(, $major, $minor, $release) = $match; var_dump($major, $minor, $release);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined array key 3 in /in/5WeMk on line 6 string(2) "12" string(1) "0" NULL
Output for 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 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined offset: 3 in /in/5WeMk on line 6 string(2) "12" string(1) "0" NULL
Output for 7.3.32 - 7.3.33
string(2) "12" string(1) "0" NULL
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined offset: 3 in /in/5WeMk on line 6 string(2) "12" string(1) "0" NULL
preferences:
230.43 ms | 402 KiB | 340 Q