3v4l.org

run code in 300+ PHP versions simultaneously
<?php // just comment/uncomment to choose which $data you want to see in action $data = array("kaushik","kaushik is","kaushik is great","is","is great","great"); // $data = array("usb","pc","cam 168","cam","168"); $current = ""; for($i=0;$i<count($data);$i++) { $current=$data[$i]; for($j=0;$j<count($data);$j++) { if($i<>$j) { if((str_replace($data[$j],"",$current))!=$current) { $data[$j]=""; }; } } } for($i=0;$i<count($data);$i++) { if($data[$i]!="") { echo $data[$i]."\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, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 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
kaushik is great

preferences:
249.44 ms | 406 KiB | 341 Q