[lazerg]

When a class implements an interface property it already got from its parent (or from an earlier interface), do_inherit_property() hands inherit_property_hook() the parent's zend_property_info as the child, and it writes into it: it sets the prototype of the inherited hook functions and adds the interface's abstract hooks to the shared hooks array. With opcache that memory is in shm, so opcache.protect_memory=1 crashes. Without opcache the parent changes for everyone: in the issue's example P::$prop gets a set hook, and after abstract class C implements J, I any later class implementing only J is asked for I::$prop::set.

Inherited hooks are now only checked, not modified, and when an abstract hook has to be added the property info is first copied into the implementing class, which is then abstract anyway.

Fixes #25264