PHP - Operators
Why does the strict equality operator (===) in PHP return false when comparing 0 and '0'?
Why does the strict equality operator (===) in PHP return false when comparing 0 and '0'?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand strict equality operator behavior
=== compares both value and type without converting types.Step 2: Compare 0 (integer) and '0' (string)
Values are equal but types differ (integer vs string), so === returns false.Final Answer:
Because their types are different -> Option BQuick Check:
Strict equality requires same type and value [OK]
Quick Trick: === returns false if types differ even if values match [OK]
Common Mistakes:
- Thinking values differ
- Believing PHP forbids string-int comparison
- Confusing === with pointer comparison
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