$array = array('john', 'city', 'small');
$rand = Arrays::randElement($array);
Result: rand element from array | public static randElement ( array $elements ) : null | ||
| $elements | array | |
| 리턴 | null | |
public static function randElement($elements)
{
return $elements ? $elements[array_rand($elements)] : null;
} /**
* @test
*/
public function shouldReturnNullIfNotFindRandomElement()
{
//given
$array = array();
//when
$result = Arrays::randElement($array);
//then
$this->assertNull($result);
}
