PHP development WeChat payment enterprise payment example code-PHP Tutorial-php.cn

Application scenarios of enterprise payment: Public accounts make payments to users who have followed them, such as processing refunds, financial settlements, etc. This article mainly shares with you the example code of developing WeChat payment enterprise payment in PHP, hoping to help everyone.

Instructions

1. The certificate needs to be the certificate from your own merchant (note: the certificate path must be an absolute path. If you use a relative path, the following error will be reported.

unable to use client certificate (no key found or wrong pass phrase?)

2. Just fill in your own appid, secret and key

Let’s talk about the implementation first. Idea:

1. First get the openid, the specific method is as follows

2. Fill in the required parameters, generate a signature, etc., the specific method is as follows

/** 
* API 参数 
* @var array 
* ‘mch_appid’ # 公众号APPID 
* ‘mchid’ # 商户号 
* ‘device_info’ # 设备号 
* ‘nonce_str’ # 随机字符串 
* ‘partner_trade_no’ # 商户订单号 
* ‘openid’ # 收款用户openid 
* ‘check_name’ # 校验用户姓名选项 针对实名认证的用户 
* ‘re_user_name’ # 收款用户姓名 
* ‘amount’ # 付款金额 
* ‘desc’ # 企业付款描述信息 
* ‘spbill_create_ip’ # Ip地址 
* ‘sign’ # 签名 
*/

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##.

#Parameter reference: Enterprise payment API documentation

1. Get CODE (index.php page)

<?php //信息回调文件所在的服务器位置$str="http://www.xxx.com/company_pay/getInfo.php";$str_url=urlencode($str);$appid = "xxxx3e5273505e";$url = &#39;https://open.weixin.qq.com/connect/oauth2/authorize?appid=&#39;.$appid.&#39;&redirect_uri=&#39;.$str_url.&#39;&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect&#39;;

header("Location:".$url);?>

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2. Information callback page code processing (getInfo.php)

<?php$appid = "wxxxxx3505e";//你的微信公众平台的appid$secret = "fxxxxx71xxx4cda2a671";//你微信公众平台的secret$code = $_GET["code"];$get_token_url = &#39;https://api.weixin.qq.com/sns/oauth2/access_token?appid=&#39;.$appid.&#39;&secret=&#39;.$secret.&#39;&code=&#39;.$code.&#39;&grant_type=authorization_code&#39;;$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$get_token_url);
curl_setopt($ch,CURLOPT_HEADER,0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);$res = curl_exec($ch);
curl_close($ch);$json_obj = json_decode($res,true);//根据openid和access_token查询用户信息$access_token = $json_obj[&#39;access_token&#39;];$openid = $json_obj[&#39;openid&#39;];$get_user_info_url = &#39;https://api.weixin.qq.com/sns/userinfo?access_token=&#39;.$access_token.&#39;&openid=&#39;.$openid.&#39;&lang=zh_CN&#39;;$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$get_user_info_url);
curl_setopt($ch,CURLOPT_HEADER,0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);$res = curl_exec($ch);
curl_close($ch);//解析json$user_obj = json_decode($res,true);//var_dump($user_obj);echo "<br/>"."-----".$openid."*****";$mch_appid=$appid;$mchid=&#39;10000401&#39;;//商户号$nonce_str=&#39;vhmake&#39;.rand(100000, 999999);//随机数$partner_trade_no=&#39;VH&#39;.time().rand(10000, 99999);//商户订单号$openid=$openid;//用户唯一标识$check_name=&#39;NO_CHECK&#39;;//校验用户姓名选项，NO_CHECK：不校验真实姓名 FORCE_CHECK：强校验真实姓名（未实名认证的用户会校验失败，无法转账）OPTION_CHECK：针对已实名认证的用户才校验真实姓名（未实名认证用户不校验，可以转账成功）$re_user_name=&#39;[北京微函工坊科技有限公司](http://www.vhmake.com)&#39;;//用户姓名$amount=100;//金额（以分为单位，必须大于100）$desc=&#39;[北京微函工坊科技有限公司](http://www.vhmake.com)&#39;;//描述$spbill_create_ip=$_SERVER["REMOTE_ADDR"];//请求ip//封装成数据$dataArr=array();$dataArr[&#39;amount&#39;]=$amount;$dataArr[&#39;check_name&#39;]=$check_name;$dataArr[&#39;desc&#39;]=$desc;$dataArr[&#39;mch_appid&#39;]=$mch_appid;$dataArr[&#39;mchid&#39;]=$mchid;$dataArr[&#39;nonce_str&#39;]=$nonce_str;$dataArr[&#39;openid&#39;]=$openid;$dataArr[&#39;partner_trade_no&#39;]=$partner_trade_no;$dataArr[&#39;re_user_name&#39;]=$re_user_name;$dataArr[&#39;spbill_create_ip&#39;]=$spbill_create_ip;require &#39;api.php&#39;;$sign=getSign($dataArr);echo "-----<br/>签名：".$sign."<br/>*****";//die;$data="<xml>
<mch_appid>".$mch_appid."</mch_appid>
<mchid>".$mchid."</mchid>
<nonce_str>".$nonce_str."</nonce_str>
<partner_trade_no>".$partner_trade_no."</partner_trade_no>
<openid>".$openid."</openid>
<check_name>".$check_name."</check_name>
<re_user_name>".$re_user_name."</re_user_name>
<amount>".$amount."</amount>
<desc>".$desc."</desc>
<spbill_create_ip>".$spbill_create_ip."</spbill_create_ip>
<sign>".$sign."</sign>
</xml>";//var_dump($data);$ch = curl_init ();$MENU_URL="https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers";
curl_setopt ( $ch, CURLOPT_URL, $MENU_URL );
curl_setopt ( $ch, CURLOPT_CUSTOMREQUEST, "POST" );
curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER, FALSE );
curl_setopt ( $ch, CURLOPT_SSL_VERIFYHOST, FALSE );$zs1="/xxxx/xxx/xxxxxx/apiclient_cert.pem";//注意：填写的路径必须为绝对路径，不可以填写相对路径$zs2="/xxxx/xxx/xxxxx/apiclient_key.pem";
curl_setopt($ch,CURLOPT_SSLCERT,$zs1);
curl_setopt($ch,CURLOPT_SSLKEY,$zs2);// curl_setopt($ch, CURLOPT_USERAGENT, &#39;Mozilla/5.0 (compatible; MSIE 5.01;// Windows NT 5.0)&#39;);curl_setopt ( $ch, CURLOPT_FOLLOWLOCATION, 1 );
curl_setopt ( $ch, CURLOPT_AUTOREFERER, 1 );
curl_setopt ( $ch, CURLOPT_POSTFIELDS, $data );
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );$info = curl_exec ( $ch );$infos=simplexml_load_string($info);if (curl_errno ( $ch )) {    echo &#39;Errno:::&#39; . curl_error ( $ch );
}

curl_close ( $ch );echo "-----<br/>请求返回值：";echo $infos->return_code;echo "<br/>*****";?>

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3. Generate the signature function file (api.php)

<?php/**
 *  作用：格式化参数，签名过程需要使用
 */function formatBizQueryParaMap($paraMap, $urlencode){
    $buff = "";
    ksort($paraMap);    foreach ($paraMap as $k => $v)
    {        if($urlencode)
        {            $v = urlencode($v);
        }        $buff .= $k . "=" . $v . "&";
    }    if (strlen($buff) > 0)
    {        $reqPar = substr($buff, 0, strlen($buff)-1);
    }    return $reqPar;
}/**
 *  作用：生成签名
 */function getSign($Obj){
    foreach ($Obj as $k => $v)
    {        $Parameters[$k] = $v;
    }    //签名步骤一：按字典序排序参数
    ksort($Parameters);    $String = formatBizQueryParaMap($Parameters, false);    //echo &#39;【string1】&#39;.$String.&#39;</br>&#39;;
    //签名步骤二：在string后加入KEY
    $String = $String."&key=vhmake666vhmake666vhmake666vhmak";    //echo "【string2】".$String."</br>";
    //签名步骤三：MD5加密
    $String = md5($String);    //echo "【string3】 ".$String."</br>";
    //签名步骤四：所有字符转为大写
    $result_ = strtoupper($String);    //echo "【result】 ".$result_."</br>";
    return $result_;
}

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Return the return parameters in xml format after success (please refer to the development documentation for details)

<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[]]></return_msg><mch_appid><![CDATA[wxec38b8ff840bd989]]></mch_appid><mchid><![CDATA[10013274]]></mchid><device_info><![CDATA[]]></device_info><nonce_str><![CDATA[lxuDzMnRjpcXzxLx0q]]></nonce_str><result_code><![CDATA[SUCCESS]]></result_code><partner_trade_no><![CDATA[10013574201505191526582441]]></partner_trade_no><payment_no><![CDATA[1000018301201505190181489473]]></payment_no><payment_time><![CDATA[2015-05-19 15：26：59]]></payment_time></xml>

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