What are the difference between array_keys() and array_key_exists() in

1.	What are the difference between array_keys() and array_key_exists() in php?
Answer» array_key_exists() : It is used to checks an ARRAY for a particular key and returns TRUE if the key exists and FALSE if the key does not exist. array_keys() : This FUNCTION returns an array containing the keys. It TAKES three parameters out of which one is mandatory and other two are optional. Syntax : array_keys(array,value,strict)

What are the difference between array_keys() and array_key_exists() in php?

Answer»

array_key_exists() : It is used to checks an ARRAY for a particular key and returns TRUE if the key exists and FALSE if the key does not exist.

array_keys() : This FUNCTION returns an array containing the keys. It TAKES three parameters out of which one is mandatory and other two are optional.
Syntax : array_keys(array,value,strict)

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What are the difference between array_keys() and array_key_exists() in php?

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