/**
* 生成要请求给支付宝的参数数组
* @param $para_temp 请求前的参数数组
* @return 要请求的参数数组
*/
public function buildRequestPara($para_temp, $partnerKey)
{
//除去待签名参数数组中的空值和签名参数
$para_filter = EasyHelpers::paraFilter($para_temp, ['sign', 'sign_type']);
//对待签名参数数组排序
$para_sort = EasyHelpers::argSort($para_filter);
//生成签名结果
$mysign = $this->buildRequestMysign($para_sort, $partnerKey);
//签名结果与签名方式加入请求提交参数组中
$para_sort['sign'] = $mysign;
$para_sort['sign_type'] = 'MD5';
return $para_sort;
}
/**
* 生成签名;
* @param array $data
* @return string
*/
private static function sign($data = [])
{
$params = $data ?: self::$config;
$fileter = EasyHelpers::paraFilter($params);
$sort = EasyHelpers::argSort($fileter);
$url = EasyHelpers::createLinkstring($sort);
$keyString = $url . '&key=' . \Yii::$app->params['wechatPay']['key'];
$sign = strtoupper(md5($keyString));
self::$config['sign'] = $sign;
return $sign;
}