You want to check if a variable $val is exactly the integer 0 in PHP. Which condition correctly does this?

hard📝 Application Q8 of 15

PHP - Type Handling

You want to check if a variable $val is exactly the integer 0 in PHP. Which condition correctly does this?

Aif ($val == 0) { ... }

Bif ($val = 0) { ... }

Cif ($val != 0) { ... }

Dif ($val === 0) { ... }

Step-by-Step Solution

Solution:

Step 1: Understand requirement for exact integer 0
Exact means type and value must match, so strict comparison needed.
Step 2: Choose correct operator
=== checks type and value, so if ($val === 0) { ... } is correct.
Final Answer:
if ($val === 0) { ... } -> Option D
Quick Check:
Use === for exact type and value check [OK]

Quick Trick: Use === to check exact type and value [OK]

Common Mistakes:

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