Solution:Step 1: Check the value of $data['name']$data['name'] is explicitly set to null.Step 2: Apply null coalescing operatorSince $data['name'] is null, $data['name'] ?? 'Unknown' returns 'Unknown'.Final Answer:Unknown -> Option DQuick Check:Null coalescing returns default if value is null [OK]

[Solved] Given this array:$data = ['name' => null, 'age' => 25];// Use null coalescing to get 'name' or 'Unknown'$name = $data['name'] ?? 'Unknown';echo $name;What will be the output? | PHP

PHP - Conditional Statements

Given this array:

$data = ['name' => null, 'age' => 25];
// Use null coalescing to get 'name' or 'Unknown'
$name = $data['name'] ?? 'Unknown';
echo $name;

What will be the output?

AError

Bnull

Cname

DUnknown

Step-by-Step Solution

Solution:

Step 1: Check the value of $data['name']
$data['name'] is explicitly set to null.
Step 2: Apply null coalescing operator
Since $data['name'] is null, $data['name'] ?? 'Unknown' returns 'Unknown'.
Final Answer:
Unknown -> Option D
Quick Check:
Null coalescing returns default if value is null [OK]

Quick Trick: Null coalescing returns default for null array values [OK]

Common Mistakes:

Expecting null output
Confusing with isset()
Thinking it causes error

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Given this array:

Step 1: Check the value of $data['name']

Step 2: Apply null coalescing operator

Final Answer:

Quick Check:

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