3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(1, 2, 3); foreach ($array as $a) { echo $a, PHP_EOL; if ($a <= 5) $array[] = $a + 3; }
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 - 5.6.40, 7.0.0 - 7.0.33, 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
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
1 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/5ncXR on line 5 PHP_EOL2 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/5ncXR on line 5 PHP_EOL3 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/5ncXR on line 5 PHP_EOL
preferences:
323.3 ms | 402 KiB | 459 Q