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/**
* 预支付请求接口(POST)
* @param string $openid openid
* @param string $body 商品简单描述
* @param string $order_sn 订单编号
* @param string $total_fee 金额
* @return json的数据
*/
public function prepay()
{
tp_log('预支付请求数据===>' . json_encode($_POST), 'prepay', request()->controller());
$goods_user = db('tf_goods_user')->where(array('order_no' => $_POST['order_no']))->find();
$goods = db('tf_goods')->where(array('id' => $goods_user['goods_id']))->find();
//判断产品的数量
if (($goods['sales_initial'] - $goods['sales_actual']) <= 0) {
$return['status'] = 0;
$return['info'] = '此产品已售完';
exit(json_encode($return));
}
$order_no = $_POST['order_no']; //订单号
$is_sale = $_POST['is_sale'];
$openid = $_POST['openid'];
$goods_name = $_POST['goods_name'];
$pay_price = $_POST['price'];
$attach['is_sale'] = $_POST['is_sale'];
$attach['sale_id'] = $_POST['sale_id'];
$nonce_str = $this->nonce_str();//随机字符串
$order_no_ssh = $this->get_orderssh(); //商户订单号
//组装支付数据
$data = [
'appid' => config('pay.APPID'),
'mch_id' => config('pay.MCHID'),
'nonce_str' => $nonce_str,
'body' => $goods_name, //商品名称组合
'attach' => json_encode($attach),
'out_trade_no' => $order_no_ssh,//$order_no, //订单号 商户订单号
'total_fee' => intval($pay_price * 100),
'spbill_create_ip' => $_SERVER['REMOTE_ADDR'],
'notify_url' => config('pay.NOTIFY_URL'),
'trade_type' => 'JSAPI',
'openid' => $openid
];
//订单支付表创建订单支付数据
$p_o_data['createtime'] = time();
$p_o_data['order_no'] = $order_no;
$p_o_data['order_no_ssh'] = $order_no_ssh;
$p_o_data['ready'] = json_encode($data);
$p_o_return = db('tf_pay_order')->insert($p_o_data);
if(!$p_o_return){
//失败
$return['status'] = -1;
$return['info'] = $p_o_data;
exit(json_encode($return));
}
// 获取签名
$sign = $this->makeSign($data);
$data['sign'] = $sign;
$xml = $this->toXml($data);
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder'; //发起支付接口链接
//发起预支付请求
$prepay_return_reslut_xml = $this->http_request($url, $xml);
$xml_to_arr = $this->fromXml($prepay_return_reslut_xml);
$return_result = json_encode($xml_to_arr, true);
tp_log('预支付请求返回数据array===>' .$return_result , 'prepay', request()->controller());
//记录预支付返回信息
db('tf_goods_order')->where(array('order_no' => $order_no))
->update(array(
'go_pay' => $return_result,
'updatetime' => time(),
'updateuser' => $openid
));
if($xml_to_arr['return_code'] == 'SUCCESS' && $xml_to_arr['result_code'] == 'SUCCESS'){
//成功
$time = time();
//临时数组用于签名
$tmp = [
'appId' => config('pay.APPID'),
'nonceStr' => $nonce_str,
'package' => 'prepay_id='.$xml_to_arr['prepay_id'],
'signType' => 'MD5',
'timeStamp' => "$time",
];
$data['timeStamp'] = "$time";//时间戳
$data['nonceStr'] = $nonce_str;//随机字符串
$data['signType'] = 'MD5';//签名算法，暂支持 MD5
$data['package'] = 'prepay_id='.$xml_to_arr['prepay_id'];//统一下单接口返回的 prepay_id 参数值，提交格式如：prepay_id=*
$data['paySign'] = $this->makeSign($tmp);//签名,具体签名方案参见微信公众号支付帮助文档;$data['out_trade_no'] = $out_trade_no;
$return['status'] = 1;
$return['info'] = $data;
}else{
//失败
$return['status'] = -1;
$return['info'] = $xml_to_arr;
}
exit(json_encode($return));
}
//curl请求
public function http_request($url, $data = null, $headers = array())
{
$curl = curl_init();
if (count($headers) >= 1) {
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
}
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
if (!empty($data)) {
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($curl);
curl_close($curl);
return $output;
}
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