3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach(array('100', '1000', '2000', '3000') as $_GET['id']){ if(!isset($_GET['id']) || !in_array($_GET['id'], array('1000', '2000'))){ echo 'not 1k or 2 k' . $_GET['id'] . PHP_EOL; } else { echo 'is 1k or 2k' . $_GET['id'] . 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 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
not 1k or 2 k100 is 1k or 2k1000 is 1k or 2k2000 not 1k or 2 k3000
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/Q2uao on line 4 not 1k or 2 k100PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/Q2uao on line 6 is 1k or 2k1000PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/Q2uao on line 6 is 1k or 2k2000PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/Q2uao on line 4 not 1k or 2 k3000PHP_EOL
preferences:
98.11 ms | 2686 KiB | 4 Q