Q. There are two strings (in an array) "Hello" and "World", which is the correct PHP statement to join them with the separator ","?
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(A)
join(",","Hello","World")
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(B)
join("Hello","World",",")
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(C)
join(",", ("Hello","World"))
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(D)
join(",",array("Hello","World"))
✅ Correct Answer: (D)
join(",",array("Hello","World"))