3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface Foo { public function bar(); } class_alias('Foo', 'Bar'); class Baz implements Bar {}
Output for 5.3.0 - 7.1.0
Fatal error: Class Baz contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Foo::bar) in /in/lVBmQ on line 5
Process exited with code 255.
Output for 5.0.0 - 5.2.17
Fatal error: Call to undefined function class_alias() in /in/lVBmQ on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/lVBmQ on line 3
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/lVBmQ on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/lVBmQ on line 3
Process exited with code 255.