3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test($a, $a){ echo ($a + $a), PHP_EOL; } test('qwer', 'asdf');
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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
0
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/QHdn5 on line 4 PHP_EOL
preferences:
232.83 ms | 1395 KiB | 163 Q