3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('leg1'=>'LA', 'leg2'=>'NY', 'leg3'=>'NY', 'leg4'=>'FL'); while($current = next($a)) { echo "current: " . key($a) . ":" . $current; $next = next($a); echo "next: " . key($a) . ":" . $next; $nextnext = next($a); echo "nextnext: " . key($a) . ":" . $nextnext; }
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 - 7.1.33, 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
current: leg2:NYnext: leg3:NYnextnext: leg4:FL
preferences:
277.07 ms | 406 KiB | 397 Q