📊 PHP
Q. What will be the output?
Code: 
$a = ['a'=>1, 'b'=>2];
echo implode(',', array_keys($a));
  • (A) 1,2
  • (B) a,b
  • (C) Error
  • (D) ab
💬 Discuss
✅ Correct Answer: (B) a,b

Explanation: array_keys returns keys.

Explanation by: Roshan
array_keys returns keys.

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