3v4l.org

run code in 300+ PHP versions simultaneously
<?php // In response to http://www.php.net/manual/en/language.constants.predefined.php#113130 // In fact, you can define magic constants too. (@__DIR__ == '__DIR__') && define('__DIR__', dirname(__FILE__)); echo "result of var_dump(__DIR__):\r\n"; var_dump(__DIR__); var_dump(__FILE__);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 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
result of var_dump(__DIR__): string(3) "/in" string(9) "/in/0tceg"
preferences:
198.64 ms | 406 KiB | 352 Q