public function testOnly()
{
$expected = array('a' => array('i' => 'ai', 'j' => 'aj'), 'b' => array('i' => 'bi', 'j' => 'bj', 'k' => 'bk'), 'c' => array());
$this->assertEquals($expected, Arr::only($this->input, 'a,b,c'));
$expected = array('a' => array('i' => 'ai', 'j' => 'aj'), 'e' => null);
$this->assertEquals($expected, Arr::only($this->input, array('a', 'e'), true));
}
public function fields($data = null)
{
return $data !== null ? Arr::only($data, $this->fields) : $this->fields;
}
/**
* Filter out an array so that it only contains the specified keys.
* @param array $keys
* @param bool $force
* @return Arr
*/
public function only($keys, $force = false)
{
return new self(Arr::only($this->data, $keys, $force));
}