3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 1; $f = 1.1; function test($a, $b, $c, $d) { var_dump($a, $b, $c, $d); } test($i++, $f++, $i++, $i++); var_dump($i, $f);
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, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 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(1) float(1.1) int(2) int(3) int(4) float(2.1)

preferences:
257.13 ms | 406 KiB | 372 Q