/** * 从给定的数组中提取出键/值对 * * @param string $value * @param string|null $key * @return static */ public function pluck($value, $key = null) { return new static(Arr::pluck($this->items, $value, $key)); }
/** * 通过点号来取得数组 * * @param mixed $target * @param string|array $key * @param mixed $default * @return mixed */ function data_get($target, $key, $default = null) { if (is_null($key)) { return $target; } $key = is_array($key) ? $key : explode('.', $key); while (($segment = array_shift($key)) !== null) { if ($segment === '*') { if (!Arr::accessible($target)) { return value($default); } $result = Arr::pluck($target, $key); return in_array('*', $key) ? Arr::collapse($result) : $result; } if (Arr::accessible($target)) { if (!Arr::exists($target, $segment)) { return value($default); } $target = $target[$segment]; } elseif (is_object($target)) { if (!isset($target->{$segment})) { return value($default); } $target = $target->{$segment}; } else { return value($default); } } return $target; }