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);

preferences:
48.12 ms | 402 KiB | 5 Q