PHP后台调用微信支付下单
function wx_getPayRequest($openid, $orderid, $rmb, $title,$appoids)
{
$nonce = $orderid.mt_rand(10000,99999);
$orderid=$orderid."_".$nonce;//str_replace(",","_",$appoids);
//Log::write("
================".$orderid,"notice");
$srct="0x".md5(config("app.environment")["paykey"].$orderid);
$notify = "";//回调地址，自己写，支付成功回调，在回调页面进行更改与用户金钱相关的代码
$url= "https://api.mch.weixin.qq.com/pay/unifiedorder";//统一接口prepay_id
// post data
$now = time()."";//时间
$appid ="";//小程序ID 写到一个类里面了 方便后期修改 当然也可以在这里直接写
$mchid ="";//商户号
// Log::write("
$mchid================".json_encode($mchid),"notice");
// Log::write("
$appid================".json_encode($appid),"notice");
$data = array(
"appid" => $appid,
"mch_id" => $mchid,
"spbill_create_ip" => "127.0.0.1",//终端ip Y
"nonce_str" => $nonce, //随机字符串Y
"openid" => $openid, //用户标识 N
"body" => $title, //商品描述 Y
// "detail" => $body, //商品详情 N
"attach" => $appoids, //附加数据 N
"out_trade_no" => $orderid, //商户订单号 Y
"total_fee" => $rmb, //总金额 单位分 int Y
"notify_url" => $notify, //通知地址 Y
"trade_type" => "JSAPI",
);
$data[ "sign" ] = self::MakeSign($data);
//echo $data[ "sign" ];
// Log::write("
sign================".json_encode($data[ "sign" ]),"notice");
$xml=self::wx_toXML($data);
$ret = $this->http_request($url,$xml);
$json = self::wx_parseXML( $ret );
//Log::write("
================".json_encode($json),"notice");
if( !$json || !isset($json[ "prepay_id" ]) )
{
return array( "payCode"=>1,"ret" => "fail", "tip" => $json[ "return_msg" ] );
}
$prepayid = $json[ "prepay_id" ];
$req = array(
"appId" => $appid,
"timeStamp" => $now,
"nonceStr" => $nonce,
"package" => "prepay_id=".$prepayid,
"signType" => "MD5",
);
$req[ "paySign" ] = self::wx_getPkgSign($req);
//$req[ "notify" ] = $notify;
return $req;
}
///作用：格式化参数，签名过程需要使用
private function formatBizQueryParaMap($paraMap, $urlencode) {
$buff = "";
ksort($paraMap);
foreach ($paraMap as $k => $v) {
if ($urlencode) {
$v = urlencode($v);
}
$buff .= $k . "=" . $v . "&";
}
$reqPar;
if (strlen($buff) > 0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}
public function wx_getPkgSign($req )
{
foreach ($req as $k => $v) {
$Parameters[$k] = $v;
}
//签名步骤一：按字典序排序参数
ksort($Parameters);
$String = $this->formatBizQueryParaMap($Parameters, false);
//签名步骤二：在string后加入KEY
$String = $String . "&key=" . config("app.environment")["paykey"];
//签名步骤三：MD5加密
$String = md5($String);
//签名步骤四：所有字符转为大写
$result_ = strtoupper($String);
return $result_;
}
public function wx_toXML( $data )
{
$xml = "<xml>";
foreach( $data as $key => $val )
{
$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
}
$xml .= "</xml>";
return $xml;
}
/**
* 输出xml字符
* @param $data
* @return string
*/
public function ToXml($data)
{
if(!is_array($data)
|| count($data) <= 0)
{
throw new WxPayException("数组数据异常！");
}
$xml = "<xml>";
foreach ($data as $key=>$val)
{
if (is_numeric($val)){
$xml.="<".$key.">".$val."</".$key.">";
}else{
$xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
}
}
$xml.="</xml>";
return $xml;
}
/**
* 格式化参数格式化成url参数
*/
public function ToUrlParams($data)
{
$buff = "";
foreach ($data as $k => $v)
{
if($k != "sign" && $v != "" && !is_array($v)){
$buff .= $k . "=" . $v . "&";
}
}
$buff = trim($buff, "&");
return $buff;
}
/**
* 生成签名
* @param $data
* @return string 签名，本函数不覆盖sign成员变量，如要设置签名需要调用SetSign方法赋值
*/
public function MakeSign($data)
{
//签名步骤一：按字典序排序参数
ksort($data);
$string = $this->ToUrlParams($data);
//签名步骤二：在string后加入KEY
$string = $string . "&key=".config("app.environment")["paykey"];
//签名步骤三：MD5加密
$string = md5($string);
//签名步骤四：所有字符转为大写
$result = strtoupper($string);
return $result;
}
public function wx_parseXML( $str )
{
$rsp = array();
$xml = @simplexml_load_string( $str );
if( $xml && $xml->children() )
{
foreach( $xml->children() as $node )
{
if( $node->children() )
{
$k = $node->getName();
$nodeXml = $node->asXML();
$v = substr( $nodeXml, strlen($k)+2, strlen($nodeXml)-2*strlen($k)-5 );
}
else
{
$k = $node->getName();
$v = (string)$node;
}
$rsp[ $k ] = $v;
}
}
return $rsp;
}
public function payRefund($wxtranid,$order_childid, $ordertotalrmb,$refundrmb){
$appid = config("environment")[config("current_environment")]["appid"];//小程序ID 写到一个类里面了 方便后期修改 当然也可以在这里直接写
$mchid = config("environment")[config("current_environment")]["mchid"];//商户号
$nonce = $order_childid.mt_rand(10000,99999);
Log::write("取消预约单申请退款中===$ordertotalrmb=".$ordertotalrmb."=======$refundrmb=".$refundrmb,"notice");
//统一下单退款参数构造
$unifiedorder = array(
"appid" => $appid,
"mch_id" => $mchid,
"nonce_str" => $nonce,
"transaction_id" => $wxtranid,
"out_refund_no" => $order_childid,
"total_fee" => intval($ordertotalrmb),
"refund_fee" => intval($refundrmb),
"notify_url"=>"https://wxcon.drmpsy.com.cn/api/appo/payBackSuccess"
);
$unifiedorder["sign"] = self::wx_getPkgSign($unifiedorder);
Log::write("$content111111================".json_encode($unifiedorder),"notice");
//请求数据
$xmldata = self::wx_toXml($unifiedorder);
$opUrl = "https://api.mch.weixin.qq.com/secapi/pay/refund";
//$res = $this->http_request($opUrl, $xmldata);
$res = $this->postXmlSSLCurl($xmldata,$opUrl);
Log::write($res,"notice");
if (!$res) {
return "Can"t connect the server";
}
$content = self::xmlToArray($res);
Log::write("$content================".json_encode($content),"notice");
try{
if (strval($content["result_code"]) == "FAIL") {
return strval($content["err_code_des"]);
}
}
catch (Exception $err){
}
try{
if ($content["return_code"]&&strval($content["return_code"]) == "FAIL") {
return strval($content["return_msg"]);
}
}
catch (Exception $err){
}
return $content;
}
public function xmlToArray($xml){
$array_data = json_decode(json_encode(simplexml_load_string($xml, "SimpleXMLElement", LIBXML_NOCDATA)), true);
return $array_data;
}
//需要使用证书的请求
private function postXmlSSLCurl($xml,$url,$second=30)
{
$ch = curl_init();
//超时时间
curl_setopt($ch,CURLOPT_TIMEOUT,$second);
//这里设置代理，如果有的话
//curl_setopt($ch,CURLOPT_PROXY, "8.8.8.8");
//curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,FALSE);
//设置header
curl_setopt($ch,CURLOPT_HEADER,FALSE);
//要求结果为字符串且输出到屏幕上
curl_setopt($ch,CURLOPT_RETURNTRANSFER,TRUE);
//设置证书
//使用证书：cert 与 key 分别属于两个.pem文件
//默认格式为PEM，可以注释
curl_setopt($ch,CURLOPT_SSLCERTTYPE,"PEM");
curl_setopt($ch,CURLOPT_SSLCERT, "/nfs/website/wx.drmpsy.com.cn/api/cert/apiclient_cert.pem");
//默认格式为PEM，可以注释
curl_setopt($ch,CURLOPT_SSLKEYTYPE,"PEM");
curl_setopt($ch,CURLOPT_SSLKEY,"/nfs/website/wx.drmpsy.com.cn/api/cert/apiclient_key.pem");
//post提交方式
curl_setopt($ch,CURLOPT_POST, true);
curl_setopt($ch,CURLOPT_POSTFIELDS,$xml);
$data = curl_exec($ch);
//返回结果
if($data){
curl_close($ch);
return $data;
}
else {
$error = curl_errno($ch);
echo "curl出错，错误码:$error"."<br>";
curl_close($ch);
return false;
}
}
//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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PHP接口微信支付
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