3v4l.org

run code in 300+ PHP versions simultaneously
<?php $c = [1, 2, 3, 4, 5]; $a = array_shift($c); $b = array_shift($c); var_dump($a, $b, $c);
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
int(1) int(2) array(3) { [0]=> int(3) [1]=> int(4) [2]=> int(5) }

preferences:
198.82 ms | 404 KiB | 209 Q