3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( 1, 2, 3 ); for ($i = 1; $i <= 30;) { echo $i . ": "; echo count($array) % $i++ . "\n"; //echo $array[] . "\n"; }
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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
1: 0 2: 1 3: 0 4: 3 5: 3 6: 3 7: 3 8: 3 9: 3 10: 3 11: 3 12: 3 13: 3 14: 3 15: 3 16: 3 17: 3 18: 3 19: 3 20: 3 21: 3 22: 3 23: 3 24: 3 25: 3 26: 3 27: 3 28: 3 29: 3 30: 3
preferences:
201.26 ms | 404 KiB | 330 Q