3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class x { const FOO = "bar"; } $class = 'x'; $const = 'FOO'; var_dump($class::{$const});
Output for 5.4.0 - 5.4.21
Parse error: syntax error, unexpected ')', expecting '(' in /in/nAi2r on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected '{', expecting T_STRING or T_VARIABLE or '$' in /in/nAi2r on line 6
Process exited with code 255.