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What will be the output of the following code snippet?
$input = [4, "4", "3", 4, 3, "3", 3, 3, 3, 3, 3, 5, 5, 5, 5, 7, 7, 7, 7];
echo count(array_unique($input));- A) 4
- B) The script will throw an error message
- C) 19
- D) 6
Answer
Answer: A