3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $subdir = 'rasmus'; $file = 'phpfi'; define('DIR', __DIR__); echo "{${DIR}}/{$subdir}/{$file}\n"; ?>
based on JMN4F
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
Notice: Undefined variable: /in in /in/um9Ik on line 8 /rasmus/phpfi