3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class Foo { public static function bar() : self { return self; } } class Foo2 extends Foo {} var_dump(Foo2::bar());
based on 7etZc
Output for 7.2.0 - 7.3.0beta1
Warning: Use of undefined constant self - assumed 'self' (this will throw an Error in a future version of PHP) in /in/hEkco on line 7 Fatal error: Uncaught TypeError: Return value of Foo::bar() must be an instance of Foo, string returned in /in/hEkco:7 Stack trace: #0 /in/hEkco(12): Foo::bar() #1 {main} thrown in /in/hEkco on line 7
Process exited with code 255.
Output for 7.0.0 - 7.1.20
Notice: Use of undefined constant self - assumed 'self' in /in/hEkco on line 7 Fatal error: Uncaught TypeError: Return value of Foo::bar() must be an instance of Foo, string returned in /in/hEkco:7 Stack trace: #0 /in/hEkco(12): Foo::bar() #1 {main} thrown in /in/hEkco on line 7
Process exited with code 255.
Output for 5.3.23 - 5.6.28
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/hEkco on line 5
Process exited with code 255.