3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump((string)__DIR__);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
string(3) "/in"
Output for 4.3.1 - 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
Notice: Use of undefined constant __DIR__ - assumed '__DIR__' in /in/6F3Pg on line 2 string(7) "__DIR__"
Output for 4.3.0
Notice: Use of undefined constant __DIR__ - assumed '__DIR__' in /in/igNXt on line 2 string(7) "__DIR__"

preferences:
208.63 ms | 401 KiB | 315 Q