What is array_keys() used for?

Options
- Compares array keys, and returns the matches
- Checks if the specified key exists in the array
- Returns all the keys of an array
- Both b and c

CORRECT ANSWER : Returns all the keys of an array

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array_keys() used for.

Answer : Returns all the keys of an array.

This function is used to return an array containing the keys.
It returns all the keys of an array element.


Jayesh Sonar 02-10-2015 04:06 AM

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