| public setRelatedKeys ( array | null $keys ) : self | ||
| $keys | array | null | |
| 리턴 | self | |
public function setRelatedKeys($keys)
{
if (!is_array($keys) and $keys !== null) {
throw new InvalidArgumentException('Invalid related keys given. Expected array or null, ' . gettype($keys) . ' given.');
}
$this->relatedKeys = $keys;
return $this;
}