Variable Scope

Let’s talk about variable scope. Scope defines how and where you can access and use variables. It relates to memory. A variable within a function belongs to that function. Scoping is like a gatekeeper. It protects our code from other functions and code, to ensure we have control. It protects our variable naming to avoid naming conflicts.

What defines scope? Do instructions have scope, such as foreach?

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Episode #10
31:44 Runtime

Scoping – Who Can Communicate With Whomfree

Lab: Building Blocks of Programming

Let's talk about scoping, i.e. who can communicate with whom in your program. It defines the rules to define what code can talk with other code. This is a technical discussion which includes how memory is used and allocated.

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Episode #13
08:34 Runtime

What's the deal with scope?free

Lab: PHP 101: Gentle Introduction to WordPress Programming

What is the deal with scope? If you are working on a theme or some code, you’ll hear about scope. Or maybe you’ve tried to access a variable that’s in another function and you don’t understand why you can’t access it. Why? How about the global variables? Let’s talk about scope. Scope defines what parts of your code can access other code. In this episode, we’ll talk specifically about variables and their scope. Variables have scope. They belong to some access level. Variables within a function belong to that function. The function can use them, but code outside of that […]

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