What is the use of array_flip() function?

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Question:What is the use of array_flip() function?

1.Rearranges the array elements in the reverse order

2.Is used to convert the keys to values and values to keys.

3.Can be used to fetch the keys present in the array

4.Returns number of elements in the array

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  1. What is the use of array_flip() function?
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