php二维码支付 源码

<?php

namespace app\api\controller;

use app\common\controller\Api;


class WxpayService extends Api
{
    protected $mchid;
    protected $appid;
    protected $apiKey;

    public function __construct($mchid, $appid, $key)
    {
        $this->mchid = $mchid;
        $this->appid = $appid;
        $this->apiKey = $key;
    }

    /**
     * 发起订单
     * @param float $totalFee 收款总费用 单位元
     * @param string $outTradeNo 唯一的订单号
     * @param string $orderName 订单名称
     * @param string $notifyUrl 支付结果通知url 不要有问号
     * @param string $timestamp 订单发起时间
     * @return array
     */
    public function createJsBizPackage($totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp)
    {
        $config = array(
            'mch_id' => $this->mchid,
            'appid' => $this->appid,
            'key' => $this->apiKey,
        );
        //$orderName = iconv('GBK','UTF-8',$orderName);
        $unified = array(
            'appid' => $config['appid'],
            'attach' => 'pay',       //商家数据包，原样返回，如果填写中文，请注意转换为utf-8
            'body' => $orderName,
            'mch_id' => $config['mch_id'],
            'nonce_str' => self::createNonceStr(),
            'notify_url' => $notifyUrl,
            'out_trade_no' => $outTradeNo,
            'spbill_create_ip' => '127.0.0.1',
            'total_fee' => intval($totalFee * 100),    //单位 转为分
            'trade_type' => 'NATIVE',
        );
        $unified['sign'] = self::getSign($unified, $config['key']);
        $responseXml = self::curlPost('https://api.mch.weixin.qq.com/pay/unifiedorder', self::arrayToXml($unified));
        $unifiedOrder = simplexml_load_string($responseXml, 'SimpleXMLElement', LIBXML_NOCDATA);
        if ($unifiedOrder === false) {
            die('parse xml error');
        }
        if ($unifiedOrder->return_code != 'SUCCESS') {
            die($unifiedOrder->return_msg);
        }
        if ($unifiedOrder->result_code != 'SUCCESS') {
            die($unifiedOrder->err_code);
        }
        $codeUrl = (array)($unifiedOrder->code_url);
        if(!$codeUrl[0]) exit('get code_url error');
        $arr = array(
            "appId" => $config['appid'],
            "timeStamp" => $timestamp,
            "nonceStr" => self::createNonceStr(),
            "package" => "prepay_id=" . $unifiedOrder->prepay_id,
            "signType" => 'MD5',
            "code_url" => $codeUrl[0],
        );
        $arr['paySign'] = self::getSign($arr, $config['key']);
        return $arr;
    }


    public function notify()
    {
        $config = array(
            'mch_id' => $this->mchid,
            'appid' => $this->appid,
            'key' => $this->apiKey,
        );
        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

        $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
        if ($postObj === false) {
            die('parse xml error');
        }
        if ($postObj->return_code != 'SUCCESS') {
            die($postObj->return_msg);
        }
        if ($postObj->result_code != 'SUCCESS') {
            die($postObj->err_code);
}
$arr = (array)$postObj;
        unset($arr['sign']);
        if (self::getSign($arr, $config['key']) == $postObj->sign) {
echo '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';
            return $postObj;
}
    }

/**
     * curl get
     *
     * @param string $url
* @param array $options
* @return mixed
     */
public static function curlGet($url = '', $options = array())
    {
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
        if (!empty($options)) {
            curl_setopt_array($ch, $options);
}
//https请求 不验证证书和host
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
$data = curl_exec($ch);
curl_close($ch);
        return $data;
}

public static function curlPost($url = '', $postData = '', $options = array())
    {
if (is_array($postData)) {
$postData = http_build_query($postData);
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数
if (!empty($options)) {
            curl_setopt_array($ch, $options);
}
//https请求 不验证证书和host
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
$data = curl_exec($ch);
curl_close($ch);
        return $data;
}

public static function createNonceStr($length = 16)
    {
$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
$str = '';
        for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}

public static function arrayToXml($arr)
    {
$xml = "<xml>";
        foreach ($arr as $key => $val) {
if (is_numeric($val)) {
$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
} else
$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
}
$xml .= "</xml>";
        return $xml;
}
/**
     * 获取签名
*/
public static function getSign($params, $key)
    {
        ksort($params, SORT_STRING);
$unSignParaString = self::formatQueryParaMap($params, false);
$signStr = strtoupper(md5($unSignParaString . "&key=" . $key));
        return $signStr;
}

protected static function formatQueryParaMap($paraMap, $urlEncode = false)
    {
$buff = "";
ksort($paraMap);
        foreach ($paraMap as $k => $v) {
if (null != $v && "null" != $v) {
if ($urlEncode) {
$v = urlencode($v);
}
$buff .= $k . "=" . $v . "&";
}
        }
$reqPar = '';
        if (strlen($buff) > 0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}
}

-------------------根据订单 生成支付二维码 ----------------------

    //微信二维码支付
    public function weixin_pay($order_info){

        header('Content-type:text/html; Charset=utf-8');
        $mchid = '1526490391';     //微信支付商户号 PartnerID 通过微信支付商户资料审核后邮件发送
        $appid = 'wxa56453230440af7f'; //公众号APPID 通过微信支付商户资料审核后邮件发送
        $apiKey = 'JZf7f6vKyTO6Y4xS5o6YYMnwDfTYVHOS';  //https://pay.weixin.qq.com 帐户设置-安全设置-API安全-API密钥-设置API密钥
        $wxPay = new WxpayService($mchid,$appid,$apiKey);
        $outTradeNo = "sdkphp123456789".date("YmdHis");   //你自己的商品订单号
        $payAmount = 0.01;     //付款金额，单位:元
        $orderName = '支付测试';  //订单标题
        $notifyUrl = 'https://cashier.cinboom.cn/index.php/api/Notify/notify_pay';   //付款成功后的回调地址(不要有问号)
        $payTime = time();   //付款时间
        //var_dump($payAmount,$outTradeNo,$orderName,$notifyUrl,$payTime);exit;
        $arr = $wxPay->createJsBizPackage($payAmount,$outTradeNo,$orderName,$notifyUrl,$payTime);

        //生成二维码
        $url = 'http://qr.liantu.com/api.php?text='.$arr['code_url'];
        echo "<img src='{$url}' style='width:300px;'>";
exit;
        //$url2 = $result["code_url"];

    }