Question

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PHP Built-in Method to Get Array Values Given a List of Keys

Does PHP has built-in function for this purpuse?

I have two arrays, first associative with some data. For example:

$data = array(
    'name'      => 'John',
    'last_name' => 'Smith',
    'address'   => 'NY, ...',
    'phone'     => '1234567'
);

And another array with keys:

$keys = array(
    'name', 
    'last_name'
);

After aplying this function I get only values from first array, which have keys from second array.

$result = function($data, $keys);
print_r($result);

// array(
//    'name'      => 'Jonh',
//    'last_name' => 'Smith'
// )

Answer 1

Try the below:

$result = array_intersect_key($data, array_fill_keys($keys, null));