Similar to array_shift but on the keys of the array
like array_shift() only for keys and not values
| public static arrayShiftKeys ( array &$array ) : string | ||
| $array | array | keyValuePairs |
| 리턴 | string | key |
/**
* UtilityTest::testArrayShiftKeys()
*
* @covers ::arrayShiftKeys
* @return void
*/
public function testArrayShiftKeys()
{
$array = ['a' => 1, 'b' => ['c' => ['d' => ['f' => 'g', 'h' => true]]], 'k' => 'm'];
$res = Utility::arrayShiftKeys($array);
$expected = 'a';
$this->assertSame($expected, $res);
$expected = ['b' => ['c' => ['d' => ['f' => 'g', 'h' => true]]], 'k' => 'm'];
$this->assertSame($expected, $array);
}
