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Identify the logical error in this PHP code snippet:

medium📝 Debug Q7 of 15
PHP - Operators
Identify the logical error in this PHP code snippet:
if ($a <=> $b) {
echo 'Not equal';
} else {
echo 'Equal';
}
AThe spaceship operator cannot be used inside if conditions.
BThe condition treats 0 as false, so equal values print 'Equal'.
CThe operator returns boolean, so the condition is always true.
DThe code will cause a syntax error.
Step-by-Step Solution
Solution:
  1. Step 1: Understand spaceship operator return values

    It returns -1, 0, or 1 as integers.
  2. Step 2: Evaluate if condition behavior

    0 is treated as false, so equal values enter else block.
  3. Final Answer:

    The condition treats 0 as false, so equal values print 'Equal'. -> Option B
  4. Quick Check:

    0 is false in if conditions [OK]
Quick Trick: 0 is false in if, so equal returns else block [OK]
Common Mistakes:
  • Assuming spaceship returns boolean
  • Expecting true for equal values
  • Ignoring how PHP treats 0 in conditions

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