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WeChat payment packaged in 2016 is so easy to use

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Aug 04, 2016 am 08:56 AM

I have been working on WeChat and encountered many pitfalls. I wrote it down today so that everyone can avoid detours. It is my first time to write text, which is a bit crude. If there is anything you don’t understand, you can contact me at QQ1034100429, or send a private message.
getaccesstoken Get access_token
//Initiate payment
public function sendpay($openid, $title, $out_trade_no, $total_fee, $notify_url)

sendtpl sends template messages<?php /** * Created by PhpStorm. * User: Administrator * Date: 2016/4/11 * Time: 22:43 */ namespace Org; class Weixin { Private $appid; //Appid of WeChat official account Private $appsecret; //appsecret of WeChat public account Private $mchid; //The merchant account of the WeChat public account Private $wechatkey; //Payment key for WeChat official account private$token; Public function __construct() { $this->appid = C('WEIXIN_APPID'); $this->appsecret = C("WEIXIN_APP_SECRET"); $this->mchid = C("WEIXIN_MCHID"); $this->wechatkey = C("WEIXIN_KEY"); $this->token = C('WEIXIN_APP_TOKEN'); } Public function chushi() { echo $this->getaccesstoken(); } Public function checkSignature() { $signature = $_GET['signature']; $timestamp = $_GET['timestamp']; $nonce = $_GET['nonce']; $token = $this->token; $arrtemp = array($token, $timestamp, $nonce); sort($arrtemp, SORT_STRING); $arrtemp = implode($arrtemp); $arrtemp = sha1($arrtemp); If ($arrtemp == $signature) { return true; else { Return false; } } Public function valid() { $echoStr = $_GET['echostr']; If ($this->checkSignature()) { echo $echoStr; exit; } } ////According to the returned information, make corresponding processing // public function responseMsg() // { // $postStr = file_get_contents('php://input'); // if (!empty($postStr)){ // /* libxml_disable_entity_loader is to prevent XML eXternal Entity Injection, // the best way is to check the validity of xml by yourself */ // libxml_disable_entity_loader(true); // $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA); // $fromUsername = $postObj->FromUserName; // $toUsername = $postObj->ToUserName; // $keyword = trim($postObj->Content); // $msgType = $postObj->MsgType; // $Event=$postObj->Event; // $time = time(); // $textTpl = "<xml> // <tousername></tousername> // <fromusername></fromusername> // <createtime>%s</createtime> // <msgtype></msgtype> // <content></content> // <funcflag>0</funcflag> // </xml>"; // if(!empty( $keyword )) // { // $msgType = "text"; // $contentStr = "Welcome to wechat world!"; // $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); // echo $resultStr; // }else{ // echo "Input something..."; // } // // }else { // echo ""; // exit; // } // } public function getaccesstoken() { $access_token = S('access_token'); if(!empty($access_token)){ return $access_token; }else{ $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . $this->appid . "&secret=" . $this->appsecret;; $ret = $this->curlget($url); $ret = json_decode($ret,true); S('access_token',$ret['access_token'],7100); return $ret['access_token']; } } //根据openid拉取用户信息 public function userinfo($openid){ $access_token = $this->getaccesstoken(); $url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=".$access_token."&openid=".$openid."&lang=zh_CN"; $userinfo = json_decode($this->curlget($url),true); return $userinfo; } function p($arr){ echo "<meta> <pre class="brush:php;toolbar:false">"; print_r($arr); } function curlget($url) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HEADER, 0); $output = curl_exec($ch); curl_close($ch); return $output; } public function jingmo($url,$code,$state){ if($code){ $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$this->appid."&secret=".$this->appsecret."&code=".$code."&grant_type=authorization_code"; $arrtemp = json_decode($this->curlget($url),true); $ret = $this->getuserinfo($arrtemp['openid'],$arrtemp['access_token']); return $ret; }else{ $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$this->appid."&redirect_uri=".$url."&response_type=code&scope=snsapi_userinfo&state=".$state."#wechat_redirect"; header("Location: $url"); } } public function getuserinfo($openid,$user_access_token){ $userurl = "https://api.weixin.qq.com/sns/userinfo?access_token=".$user_access_token."&openid=".$openid."&lang=zh_CN"; $userinfo = json_decode($this->curlget($userurl),true); return $userinfo; } public function getjsapi_ticket(){ $js_ticket = S("js_ticket"); if(!empty($js_ticket)){ return $js_ticket; }else{ $access_token = $this->getaccesstoken(); $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=".$access_token."&type=jsapi"; $res = json_decode($this->curlget($url),true); S("js_ticket",$res['ticket'],7100); return $res['ticket']; } } public function getjssign(){ echo "<meta>"; $js_ticket = $this->getjsapi_ticket(); $time = time(); $arr = array( 'noncestr'=>md5($time), 'jsapi_ticket'=>$js_ticket, 'timestamp'=>$time, 'url'=>'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'], ); $this->p($arr); ksort($arr); $string=""; $i=1; foreach($arr as $key=>$val){ if($i==1){ $string.=$key."=".$val; }else{ $string.="&".$key."=".$val; } $i++; echo $i; } // echo $string; $signature =strtolower($string); $signature = sha1($string); $jsconfig = array( 'debug'=>true, 'appId'=>$this->appid, 'timestamp'=>$time, 'nonceStr'=>md5($time), 'signature'=>$signature, ' jsApiList'=>"['onMenuShareTimeline','onMenuShareAppMessage','onMenuShareQQ']", ); $json = json_encode($jsconfig); return $json; } //生成大写签名 function createsign($arr,$biaozhi){ ksort($arr); $string=""; $i=1; foreach($arr as $key=>$val){ if($i==1){ $string.=$key."=".$val; }else{ $string.="&".$key."=".$val; } $i++; } $signtemp = "$string&key=" . $this->wechatkey; $sign = strtoupper(MD5($signtemp)); $arr[$biaozhi] = $sign; //$json = json_encode($arr); return $arr; } //支付 //发起支付 public function sendpay($openid, $title, $out_trade_no, $total_fee, $notify_url) { $time = time(); $arr = array( 'appid' => $this->appid, 'mch_id' => $this->mchid, 'nonce_str' => md5($time), 'body' => "kjhk", 'out_trade_no' => $out_trade_no, 'total_fee' => $total_fee, 'spbill_create_ip' => "127.0.0.1", 'notify_url' => $notify_url, 'trade_type' => "JSAPI", 'openid' => $openid, ); $biaozhi ='sign'; $arr = $this->createsign($arr,$biaozhi); $xml = "<xml>"; foreach ($arr as $key=>$val) { $xml.="".$val."".$key.">"; } $xml.="</xml>"; $url = "https://api.mch.weixin.qq.com/pay/unifiedorder"; $resxml = $this->postCurlTransfer($url,$xml); $res = simplexml_load_string($resxml); $cutime = time(); $jsapiarr=array( 'appId'=>$this->appid, 'timeStamp'=>"$cutime", 'nonceStr'=>md5($cutime), 'package'=>"prepay_id=".$res->prepay_id, 'signType'=>"MD5", ); $biaozhi = 'paySign'; $jsapi = $this->createsign($jsapiarr,$biaozhi); // $jsapijson = json_encode($jsapi); return $jsapi; } public function getpaysign(){ $time = time(); $arr = array( 'appid'=>$this->appid, 'mch_id'=>$this->mchid, 'nonce_str'=>md5($time), 'body'=>"sdf", 'out_trade_no'=>"2016".$time, 'total_fee'=>1, 'spbill_create_ip'=>"127.0.0.1", 'notify_url'=>"http://www.baidu.com", 'trade_type'=>"JSAPI", ); ksort($arr); $string=""; $i=1; foreach($arr as $key=>$val){ if($i==1){ $string.=$key."=".$val; }else{ $string.="&".$key."=".$val; } $i++; } $string.="&key=".$this->wechatkey; $sign = strtoupper(md5($string)); $arr['sign'] = $sign; return $arr; } function Post($curlPost,$url){ $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_HEADER, false); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_NOBODY, true); curl_setopt($curl, CURLOPT_POST, true); curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost); $return_str = curl_exec($curl); curl_close($curl); return $return_str; } private function postCurlTransfer($url, $data) { $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $data); $str = curl_exec($curl); curl_close($curl); Return $ Str; } //Send template message Public function sendtpl($openid, $url, $template_id, $content, $topcolor="#FF0000") { $arr = array( 'touser' => $openid, ‘template_id’ => $template_id, 'url' => $url, 'topcolor' => $topcolor, 'data' => $content, ); $arrjson = json_encode($arr); $accesstoken = $this->getAccessToken(); $sendurl = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=".$accesstoken; return $this->postCurlTransfer($sendurl, $arrjson); } }</pre>The above is a simple package of WeChat payment

If you initiate payment, please first correspond to the information of the WeChat official account.
Including WeChat payment directory
I am here
http://domain name//index.php/Home/Index/
It seems to be this

The process of obtaining access_token<?php /** * Created by PhpStorm. * User: sks * Date: 16/7/8 * Time: 下午3:54 */ namespace HomeController; use CommonControllerHomebaseController; Class WeixinController extends HomebaseController{ Public function zhanshi(){ $weixin = new OrgWeixin; $code = $_GET['code']; $state = $_GET['state']; $url=""; $userinfo = $weixin->jingmo($url, $code, $state); Session('userinfo',$userinfo); if($code) { header("Location: $state"); }else{ } } }Public function
function.phpfunction getuserinfo(){ //Get user information Import("weixin"); $weixin = new OrgWeixin; $info = session('userinfo'); If($info){ Return $ info; die; }else { $state = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; $code = $url = 'http://' . $_SERVER['HTTP_HOST'] . U('Home/Weixin/zhanshi'); $url = urlencode($url); $weixin->jingmo($url, $code, $state); } } Test payment /**
* Created by PhpStorm.
*User: sks
* Date: 16/7/8
* Time: 3:29 pm
*/
namespace HomeController;
use CommonControllerHomebaseController;
use ThinkPage;
Class IndexController extends HomebaseController{

//Test payment
Public function zhifu()
{
$userinfo = getuserinfo(); //Get WeChat user information and call the public function
 $openid = $userinfo['openid'];
 $time = time();
$title = "I want to pay";
 $out_trade_no = date('Y',time()).$time.rand(1000,2000);
 $total_fee = 1;
 $notify_url = "http://domain name/index.php/Home/Index/paynotify";//Callback URL
 $weixin = new OrgWeixin;
$result = $weixin->sendpay($openid, $title, $out_trade_no, $total_fee, $notify_url);
 $this->assign('result',$result);
 $this->display();
}
//Here is the payment result notification
Public function paynotify(){
 $weixin = new OrgWeixin;
 $xml = file_get_contents("php://input");
 $p = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
 $arr = $this->object_array($p);
 $out_trade_no = $arr['out_trade_no'];
 $transaction_id= $arr['transaction_id'];
 $openid = $arr['openid'];
 $sign = $arr['sign'];
//Processing payment results
unset($arr['sign']);
 $biaozhi = "sign";
 $ret = $weixin->createsign($arr, $biaozhi);
If($ret['sign'] === $sign) {
 $aa = "Success";
 else {
 $aa = "Failure";
 }
$file = './logweixin.txt';//The file name of the file to be written (can be any file name), if the file does not exist, it will be created
 $content = $out_trade_no."***".$transaction_id."First written content n";
If($f = file_put_contents($file, $content,FILE_APPEND)){//This function supports version (PHP 5)
echo "Writing successful.
";
 }
//The process of processing payment results here
 echo "success";
}

Public function getaccesstoken(){
 $weixin = new OrgWeixin;
echo $weixin->getaccesstoken();

}
}

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