PHP(TP 5)ウィーチャットウィジェット支払い(jsapi)(直接コピー)

ここではAPI論理インタフェース

namespace app\api\controller;

use app\common\controller\Api;
use \think\Request;
use think\Db;
use wxpay\WeixinPay;
/*
 *   
 */
class Pay extends Api
{
    public function pay()
    {
        $openid = $_POST['openid']; //opendi                  ！！！
        $orderid = $_POST['orderid'];  //      id        
        //       
        $orderdata = db('order')->where('id',$orderid)->field('order,money')->find();
        //              
        $wxBizDataCrypt = EXTEND_PATH.'/wxpay/WeixinPay.php';
        require_once $wxBizDataCrypt;
        $a = new WeixinPay($openid,$orderdata['order'],'    ',$orderdata['money']);
        $pay = $a -> pay();//       
        return info(10000,'        ',$pay);
    }

    //                
    public function notify_url()
    {
        $path = file_get_contents("php://input");//           xml  （            ）
        $time = date('Ymd');
        $data = json_decode(json_encode(simplexml_load_string($path, 'SimpleXMLElement', LIBXML_NOCDATA)), true);  //  xml json   json   
                //           
        if(strtolower($data['result_code']) == 'success' && strtolower($data['return_code']) == 'success'){
            Db::startTrans();
            try{
               //    
                Db::commit();
                //    
            }   catch (\Exception $e){
                Db::rollback();
                //    
            }
        }   else{
            return info(10004,'    ');
        }
    }
}

次は支払いのクラスです/extend/wxpayディレクトリに入れます(自分で作成します)

 
namespace wxpay;  //        API   
  
/* 
 *         
 */
class WeixinPay {
  protected $appid;
  protected $mch_id; 
  protected $key; 
  protected $openid; 
  protected $out_trade_no; 
  protected $body; 
  protected $total_fee;
  function __construct($openid,$out_trade_no,$body,$total_fee) { 
    $this->appid = '';//   appid
    $this->openid = $openid; //   openid
    //    
    $this->mch_id = ''; //              
    //     
    $this->key = ''; //      ,         
    //   
    $this->out_trade_no = $out_trade_no; //        
    //   
    $this->body = $body; //        
    //  
    $this->total_fee = floatval($total_fee)*100;//           100
  }
  public function pay() { 
    //       
    $return = $this->weixinapp();
    return $return; 
  }
  //       
  private function unifiedorder() {
    $url = 'https://api.mch.weixin.qq.com/pay/unifiedorder'; //         (     )
    $parameters = array( 
      'appid' => $this->appid, //   ID 
      'mch_id' => $this->mch_id, //    
      'nonce_str' => $this->createNoncestr(), //       
      'body' => $this->body, //      
      'out_trade_no'=> $this->out_trade_no, //      
      'total_fee' => $this->total_fee, //         
      'spbill_create_ip' => $_SERVER['REMOTE_ADDR'], //  IP 
      'notify_url' => '', //        ，  1.           2.https
      'openid' => $this->openid, //  id 
      'trade_type' => 'JSAPI'//     　　　　　　//                    jsAPi         
    ); 
    //       
    $parameters['sign'] = $this->getSign($parameters); 
    $xmlData = $this->arrayToXml($parameters); 
    $return = $this->xmlToArray($this->postXmlCurl($xmlData, $url, 60)); 
    return $return; 
  }
  private static function postXmlCurl($xml, $url, $second = 30)  
  { 
    $ch = curl_init(); 
    //     
    curl_setopt($ch, CURLOPT_TIMEOUT, $second); 
    curl_setopt($ch, CURLOPT_URL, $url); 
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); 
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); //     
    //  header 
    curl_setopt($ch, CURLOPT_HEADER, FALSE); 
    //                
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); 
    //post     
    curl_setopt($ch, CURLOPT_POST, TRUE); 
    curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20); 
    curl_setopt($ch, CURLOPT_TIMEOUT, 40); 
    set_time_limit(0); 

    //  curl 
    $data = curl_exec($ch); 
    //     
    if ($data) { 
      curl_close($ch); 
      return $data; 
    } else { 
      $error = curl_errno($ch); 
      curl_close($ch); 
      throw new WxPayException("curl  ，   :$error"); 
    } 
  } 
  
  //     xml 
  private function arrayToXml($arr) { 
    $xml = ""; 
    foreach ($arr as $key => $val) { 
      if (is_array($val)) { 
        $xml .= " . $key . ">" . arrayToXml($val) . "" . $key . ">"; 
      } else { 
        $xml .= " . $key . ">" . $val . "" . $key . ">"; 
      } 
    } 
    $xml .= "";
    return $xml; 
  } 
  
  
  //xml      
  private function xmlToArray($xml) { 
  
  
    //      xml    
  
  
    libxml_disable_entity_loader(true); 
  
  
    $xmlstring = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA); 
  
  
    $val = json_decode(json_encode($xmlstring), true); 
  
  
    return $val; 
  } 
  
  
  //        
  private function weixinapp() { 
    //       
    $unifiedorder = $this->unifiedorder();
    //print_r($unifiedorder);
    // halt($unifiedorder);
    // if($unifiedorder['err_code_des'] == '201        '){
    //   return ''
    // }
    $parameters = array( 
      'appId' => $this->appid, //   ID 
      'timeStamp' => '' . time() . '', //    
      'nonceStr' => $this->createNoncestr(), //    
      'package' => 'prepay_id=' . $unifiedorder['prepay_id'], //    　　　　　　　　    201       ，           ，          
      'signType' => 'MD5'//     
    ); 
    //   
    $parameters['paySign'] = $this->getSign($parameters); 
    return $parameters;
  } 
  
  
  //  ：       ，   32  
  private function createNoncestr($length = 32) { 
    $chars = "abcdefghijklmnopqrstuvwxyz0123456789"; 
    $str = ""; 
    for ($i = 0; $i < $length; $i++) { 
      $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); 
    } 
    return $str; 
  } 
  
  
  //  ：     
  private function getSign($Obj) { 
    foreach ($Obj as $k => $v) { 
      $Parameters[$k] = $v; 
    } 
    //     ：         
    ksort($Parameters); 
    $String = $this->formatBizQueryParaMap($Parameters, false); 
    //     ： string   KEY 
    $String = $String . "&key=" . $this->key; 
    //     ：MD5   
    $String = md5($String);
    //     ：         
    $result_ = strtoupper($String); 
    return $result_; 
  } 
  
  
  ///  ：     ，         
  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; 
  } 
  
  
}