3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $subdir = 'rasmus'; $file = 'phpfi'; $_ = new class { const DIR = __DIR__; }; echo "{${_::DIR}}/{$subdir}/{$file}\n"; ?>
based on XQXAt
Output for 7.0.0 - 7.3.0rc3
Fatal error: Uncaught Error: Class '_' not found in /in/ZsKY5:8 Stack trace: #0 {main} thrown in /in/ZsKY5 on line 8
Process exited with code 255.
Output for hhvm-3.15.4
Fatal error: Uncaught Error: Class undefined: _ in /in/ZsKY5:8 Stack trace: #0 {main}
Process exited with code 255.
Output for 5.6.0 - 5.6.30
Parse error: syntax error, unexpected 'class' (T_CLASS) in /in/ZsKY5 on line 6
Process exited with code 255.