PHP - Operators
What value does the null coalescing operator
?? return if the left operand is null?What value does the null coalescing operator ?? return if the left operand is null?
easy📝 Conceptual Q1 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the null coalescing operator behavior
The operator returns the left operand if it is not null; otherwise, it returns the right operand.Step 2: Apply to the given scenario
If the left operand is null, the operator returns the right operand's value.Final Answer:
The right operand's value -> Option DQuick Check:
Null coalescing operator returns right operand if left is null = A [OK]
Quick Trick: Returns right value if left is null, else left [OK]
Common Mistakes:
- Thinking it returns null if left is null
- Expecting an error when left is null
- Confusing with ternary operator
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