PHP - Operators
What is the output of this PHP code?
$a = 7;
$a += 3;
$a *= 2;
echo $a;
What is the output of this PHP code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Calculate after addition
Initially, $a = 7. After$a += 3;, $a becomes 10.Step 2: Calculate after multiplication
Then$a *= 2;multiplies $a by 2, so $a becomes 20.Final Answer:
20 -> Option AQuick Check:
Compound assignments update $a stepwise = 20 [OK]
Quick Trick: Apply compound assignments step-by-step [OK]
Common Mistakes:
- Multiplying before adding
- Confusing += and *= effects
- Forgetting to update variable after each step
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