3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(1,2,3,4,5,6,7,8,9); foreach($arr as $key=>$value) { unset($arr[$key + 1]); echo $value . PHP_EOL; }
Output for 4.3.10 - 4.3.11, 4.4.0 - 4.4.9, 5.0.2 - 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
1 2 3 4 5 6 7 8 9
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/FZYce on line 8 1PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/FZYce on line 8 2PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/FZYce on line 8 3PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/FZYce on line 8 4PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/FZYce on line 8 5PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/FZYce on line 8 6PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/FZYce on line 8 7PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/FZYce on line 8 8PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/FZYce on line 8 9PHP_EOL
preferences:
231.38 ms | 403 KiB | 400 Q