[Solved] Identify the error in the following PHP code using the null coalescing operator:$value = ?? 10; — Ans: Missing left operand before ?? operator. | PHP

PHP - Operators

Identify the error in the following PHP code using the null coalescing operator:

$value = ?? 10;

AMissing left operand before ?? operator.

BMissing semicolon at the end.

CUsing wrong operator, should be ?: instead of ??.

DNo error, code is correct.

Step-by-Step Solution

Solution:

Step 1: Analyze the operator usage
The null coalescing operator requires a left and right operand, like $a ?? $b.
Step 2: Identify the error in the code
The code has ?? 10 without a left operand before ??, which is invalid syntax.
Final Answer:
Missing left operand before ?? operator. -> Option A
Quick Check:
Null coalescing needs both operands [OK]

Quick Trick: Both sides needed for ?? operator [OK]

Common Mistakes:

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