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run code in 150+ php & hhvm versions
Bugs & Features
<?php abstract class A { /** * @return A $this */ public function a() { return $this; } } class B extends A { /** * @return B $this */ public function b() { return $this; } } $obj = new B(); $a->a() ->b();
Output for 7.0.5 - 7.1.0
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; A has a deprecated constructor in /in/1FMWG on line 3 Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; B has a deprecated constructor in /in/1FMWG on line 14 Notice: Undefined variable: a in /in/1FMWG on line 25 Fatal error: Uncaught Error: Call to a member function a() on null in /in/1FMWG:25 Stack trace: #0 {main} thrown in /in/1FMWG on line 25
Process exited with code 255.
Output for 7.0.0 - 7.0.4
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; A has a deprecated constructor in /in/1FMWG on line 3 Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; B has a deprecated constructor in /in/1FMWG on line 14 Notice: Undefined variable: a in /in/1FMWG on line 25 Fatal error: Uncaught Error: Call to a member function a() on unknown in /in/1FMWG:25 Stack trace: #0 {main} thrown in /in/1FMWG on line 25
Process exited with code 255.
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: a in /in/1FMWG on line 25 Fatal error: Uncaught exception 'BadMethodCallException' with message 'Call to a member function a() on a non-object (null)' in /in/1FMWG:25 Stack trace: #0 {main}
Process exited with code 255.
Output for 5.6.7 - 5.6.28
Notice: Undefined variable: a in /in/1FMWG on line 25 Fatal error: Call to a member function a() on null in /in/1FMWG on line 25
Process exited with code 255.
Output for 5.0.4 - 5.5.35
Notice: Undefined variable: a in /in/1FMWG on line 25 Fatal error: Call to a member function a() on a non-object in /in/1FMWG on line 25
Process exited with code 255.
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: a in /in/1FMWG on line 25 Fatal error: Call to a member function a() on a non-object in /in/1FMWG on line 25
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/1FMWG 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_CLASS in /in/1FMWG on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/1FMWG on line 3
Process exited with code 255.