a) dsort()
b) casesort()
c) natcasesort()
d) naturalsort()
Answer: c
Explanation: The function natcasesort() in PHP sorts an array by using a “natural order” algorithm. All the values keep their original keys. Eg: In a natural algorithm, as the number 2 is less than the number 10. But in computer sorting, 10 is less than 2, because the first number in “10” is less than 2. The function is case-insensitive.
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