3v4l.org

run code in 300+ PHP versions simultaneously
<?php for($i=0, $j=9;$i<$j;$i++, ($j == 9) ? $j=5: '') { echo $i, 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 - 7.2.33, 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
0 1 2 3 4
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
0 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/0IM3n on line 6 PHP_EOL1 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/0IM3n on line 6 PHP_EOL2 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/0IM3n on line 6 PHP_EOL3 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/0IM3n on line 6 PHP_EOL4 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/0IM3n on line 6 PHP_EOL

preferences:
305.22 ms | 402 KiB | 460 Q