3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?hh print (call_user_func((($x) ==> $x + 1), 3));
based on Dg28A
Output for 5.4.34
Parse error: syntax error, unexpected 'print' (T_PRINT) in /in/3lcPd on line 3
Process exited with code 255.
Output for 5.4.0 - 5.4.32
<?hh print (call_user_func((($x) ==> $x + 1), 3));