[Solved] In PHP, what is the effect of using the global keyword inside a function on a variable? — Ans: It allows the function to access and modify the variable defined in the global... | PHP

PHP - Functions

In PHP, what is the effect of using the global keyword inside a function on a variable?

AIt creates a new local variable with the same name inside the function.

BIt allows the function to access and modify the variable defined in the global scope.

CIt makes the variable read-only inside the function.

DIt deletes the global variable after the function executes.

Step-by-Step Solution

Solution:

Step 1: Understand variable scopes
Variables declared outside functions are in the global scope.
Step 2: Using global inside a function
The global keyword links the local variable to the global one, allowing access and modification.
Final Answer:
It allows the function to access and modify the variable defined in the global scope. -> Option B
Quick Check:
Global keyword links local to global variable [OK]

Quick Trick: Global links local variable to global scope [OK]

Common Mistakes:

Master "Functions" in PHP

9 interactive learning modes - each teaches the same concept differently

More PHP Quizzes

In PHP, what is the effect of using the global keyword inside a function on a variable?