3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php /** * @legacy */ interface A { function foo(); } /** * Supersedes legacy interface A */ interface B extends A { /** * @param int|null $x * Optional parameter added in new version. */ # function foo($x = NULL); } class C implements B { function foo($x = NULL) {} }
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/UvcLA on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/UvcLA on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/UvcLA on line 6
Process exited with code 255.