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run code in 150+ php & hhvm versions
Bugs & Features
<?php /** * @legacy */ interface A { function foo($x = NULL); } class C implements A { function foo() {} }
Output for 5.4.0 - 7.1.0
Fatal error: Declaration of C::foo() must be compatible with A::foo($x = NULL) in /in/Avspl on line 10
Process exited with code 255.
Output for 5.0.0 - 5.3.29
Fatal error: Declaration of C::foo() must be compatible with that of A::foo() in /in/Avspl on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/Avspl 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/Avspl on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Avspl on line 6
Process exited with code 255.