Is there a function to return specific array keys?

Question

Is there a function to return specific array keys?

I am wondering if there is a built-in PHP function to do the following:

Take two parameters: the input array and the second numerical array of key names and return only the keys from the input array whose name is in the second numerical array.

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function arrays php

Martin bean Jan 24 '11 at 10:18

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1 answer

Gumbo · Accepted Answer · 2011-01-24T10:20:56+0000

You can use array_intersect_keyand array_flip:

array_intersect_key($arr, array_flip($keys))

Is there a function to return specific array keys?

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