3v4l.org

run code in 300+ PHP versions simultaneously
<?php // $a = array( 'kaushik', 'kaushik is', 'kaushik is great', 'is', 'is great', 'great' ); $a = array("usb","pc","cam 168","cam","168","cam 168"); $print_following = array(); foreach ($a as $key => $b) { $x = 0; for ($i = 0; $i < count($a); $i++) { $c = $a; unset($c[$key]); if ($key == $i) continue; if (strpos($c[$i], $b) === false) { $x++; } if ($x == count($a) - 1) { if (!in_array($i, $print_following)) { array_push($print_following, $key); } } } } foreach ($a as $key => $value) { if (in_array($key, $print_following)) { echo $value.' '; } } ?>
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 - 7.1.20, 7.2.5 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
usb pc

preferences:
172.98 ms | 405 KiB | 312 Q