public function testArraySelectKeys()
{
$list = ['a' => 1, 'b' => 2, 'c' => 3];
$expect = ['a' => 1, 'b' => 2];
$this->assertEquals($expect, Arrays::selectKeys($list, ['a', 'b']));
}
/**
* Selects a list of keys from an array, returning a new array with only the
* key-value pairs identified by the selected keys, in the specified order.
*
* Note that since this function orders keys in the result according to the
* order they appear in the list of keys, there are effectively two common
* uses: either reducing a large dictionary to a smaller one, or changing the
* key order on an existing dictionary.
*
* @param $dict array Dictionary of key-value pairs to select from.
* @param $keys array List of keys to select.
*
* @return array Dictionary of only those key-value pairs where the key was
* present in the list of keys to select. Ordering is
* determined by the list order.
* @group util
*
* @deprecated
*/
function array_select_keys(array $dict, array $keys)
{
return \Packaged\Helpers\Arrays::selectKeys($dict, $keys);
}
