3v4l.org

run code in 300+ PHP versions simultaneously
<?php $teams=array('team_one','team_two','team_three'); $l = count($teams); for($i=0;$i <$l;$i++){ $t2 = $teams[$i]; foreach($teams as $t){ if($t != $t2 ) echo $t ." VS ". $t2. "\n"; } }
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 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 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
team_two VS team_one team_three VS team_one team_one VS team_two team_three VS team_two team_one VS team_three team_two VS team_three

preferences:
253.57 ms | 406 KiB | 355 Q