b cannot implement a - it is not an interface¶
Description¶
implements is a keyword that only applies to interfaces. Classes, traits and enum are all triggering this message.
The error message also applies with the extends keyword, when building an inteface.
Example¶
<?php
class A {}
class B implements A {}
interface B extends A {}
?>
Solutions¶
Use an interface instead of a class.
Convert the class to an interface, then implements this interface.
Change the implemented or extended class to an actual interface.