[Solved] Why does the compound assignment operator += update the variable instead of creating a new one? — Ans: Because it adds the right value to the existing variable and stores the result... | PHP

PHP - Operators

Why does the compound assignment operator += update the variable instead of creating a new one?

ABecause it adds the right value to the existing variable and stores the result back.

BBecause it creates a new variable with the sum.

CBecause it only compares values without changing them.

DBecause it resets the variable to zero before adding.

Step-by-Step Solution

Solution:

Step 1: Understand compound assignment behavior
The += operator adds the right value to the current variable value.
Step 2: Explain update mechanism
It stores the sum back into the same variable, updating it instead of creating a new one.
Final Answer:
Because it adds the right value to the existing variable and stores the result back. -> Option A
Quick Check:
Compound assignment updates variable in place [OK]

Quick Trick: Compound assignments update variable value directly [OK]

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