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By making the self reference explicit, you're free to refer to any object by that self reference. Also, such a way of playing with classes at runtime is harder to do in the more static languages - not that's it's. Jul 8, 2017 · In this case, there are some benefits to allowing this: 1) Methods are just functions that happen defined in a class, and need to be callable either as bound methods with implicit self passing. For a language-agnostic consideration of the design decision, see What is the advantage of having this/self pointer mandatory explicit?. To close debugging questions where OP omitted a self. self - This refers to the current class name. So self::baz() is the same as Foo::baz() within the Foo class (any method on it). parent - This refers to the parent of the current class. static - This refers to the. The W3C's WebAppSec Working Group is starting to look at the issue. See, for example, Proposal: Marking HTTP As Non-Secure. How to create a self-signed certificate with OpenSSL The commands.
A.x is a class variable. B 's self.x is an instance variable. i.e. A 's x is shared between instances. It would be easier to demonstrate the difference with something that can be modified like a list:
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