3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); if (!defined('__DIR__')) { echo 'magic __DIR__ is not defined; defining it now.' . PHP_EOL; define('__DIR__', dirname(__FILE__)); } var_dump(__DIR__);
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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
magic __DIR__ is not defined; defining it now. string(3) "/in"
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
<br /> <b>Notice</b>: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in <b>/in/jvHH3</b> on line <b>5</b><br /> magic __DIR__ is not defined; defining it now.PHP_EOLstring(3) "/in"

preferences:
279.52 ms | 402 KiB | 464 Q