/**
* Returns only specified items
*
* @param array $keys Keys which to return from array
* @param bool $respectKeyOrder If you want the resulting array to be ordered
* precisely as $keys. Especially useful in list() construct
* @param bool $requireAllKeys Require all keys from $keys to be present in the result. Throw exception otherwise
*
* @return array
* @throws Exception
*/
public function getOnly(array $keys, $respectKeyOrder = false, $requireAllKeys = true)
{
$this->assertArrayDataExists();
$result = $respectKeyOrder ? Arr::onlyRespectOrder($this->data, $keys) : Arr::only($this->data, $keys);
if ($requireAllKeys) {
$this->assertAllDataPresent($keys, $result);
}
return $result;
}
/**
*
*/
public function testOnlyRespectOrder()
{
$testData = ['key1' => 'value1', 'key2' => 'value2', 'key3' => 'value3'];
$expected = ['key3' => 'value3', 'key2' => 'value2'];
$this->assertEquals($expected, Arr::onlyRespectOrder($testData, ['key3', 'key2']));
}
