[Solved] What is wrong with the following PHP code snippet?$result = $value ??; — Ans: The null coalescing operator requires a right-hand operand. | PHP

PHP - Operators

What is wrong with the following PHP code snippet?

$result = $value ??;

AThe null coalescing operator requires a right-hand operand.

BThe variable $value is not defined.

CThe null coalescing operator cannot be used with variables.

DThe semicolon is missing at the end of the statement.

Step-by-Step Solution

Solution:

Step 1: Analyze the null coalescing operator usage
The operator '??' requires two operands: a left and a right operand.
Step 2: Check the code snippet
In the code, '$result = $value ??;' the right operand after '??' is missing, which is a syntax error.
Final Answer:
The null coalescing operator requires a right-hand operand. -> Option A
Quick Check:
Operator '??' must have both operands [OK]

Quick Trick: Null coalescing operator always needs two operands [OK]

Common Mistakes:

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