3v4l.org

run code in 300+ PHP versions simultaneously
<?php function mysort($a,$b){ return strlen($b)-strlen($a); } $data = array("kaushik","kaushik is","kaushik is great","is","is great","great"); usort($data,'mysort'); $current = ""; for($i=0;$i<count($data);$i++) { $current=$data[$i]; for($j=$i+1;$j<count($data);$i++) { $current=str_replace($data[$j],"",$current); } if ($current=="") { echo $current."\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, 5.5.24 - 5.5.35, 5.6.8 - 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

Process exited with code 137.
preferences:
196.59 ms | 406 KiB | 314 Q