<?php # 微信統一下單接口$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';  $param = [  'appid' => '公眾號id',  'mch_id' => '商戶id',  'nonce_str' =>uniqid(),  'sign_type' => 'MD5',  'body' => 'test',  'detail' => 'test detail',  'out_trade_no' => date('Ymd').rand(10000,99999),  'total_fee' => 1,  'notify_url' => 'http://www.test.top/testpay/pay.php',  'trade_type' =>'JSAPI',];  ksort( $param ); $sign_str = urldecode(http_build_query( $param ));  $sign_str .= '&key=商戶密鑰';  //echo $sign_str;exit; $sign_str = md5( $sign_str );  $param['sign'] = strtoupper( $sign_str ); function CurlPost($url, $param = [], $is_post = 1, $timeout = 5 ){   //初始化curl  $curl = curl_init();   // 設置請求的路徑  curl_setopt($curl, CURLOPT_URL, $url);   if ($is_post == 1) {    //設置POST提交    curl_setopt($curl, CURLOPT_POST, 0);  }   //顯示輸出結果 1代表 把接口返回的結果當作一個字符串處理  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);   // 設置請求超時時間  curl_setopt($curl, CURLOPT_TIMEOUT, $timeout);   curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);    if ($is_post == 1) {    //提交數據 -- 設置post提交的數據    if (is_array($param)) {       //http_build_query      curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($param));    } else {      curl_setopt($curl, CURLOPT_POSTFIELDS, $param);    }  }   //執行請求  $data = $data_str = curl_exec($curl);  //處理錯誤  if ($error = curl_error($curl)) {    $log_data = array(      'url' => $url,      'param' => $param,      'error' => '<span style="color:red;font-weight: bold">' . $error . '</span>',    );     var_dump($log_data);    exit;  }   # 關閉CURL  curl_close($curl);    //json數據轉換為數組  $data = json_decode($data, true);   if (!is_array($data)) {    $data = $data_str;  }   #調用玩接口之后寫一個日志  $log = [    'url' => $url,    'param' => $param,    'response' => $data_str  ];  file_put_contents(__DIR__ . '/wechat.log', print_r($log, true), 8);   return $data; }function arr2Xml( $arr ){   $xml = '<xml version="1.0" encoding="UTF-8"> ';  foreach( $arr as $key => $value ){    if (is_numeric($value)){      $xml.="<".$key.">".$value."</".$key.">";    }else{      $xml.="<".$key."><![CDATA[".$value."]]></".$key.">";    }   }  $xml .= '</xml>';  return $xml;} $xml = arr2Xml( $param ); $result = CurlPost( $url , arr2Xml($param) );  $api_arr = json_decode( json_encode(simplexml_load_string( $result , 'SimpleXMLElement', LIBXML_NOCDATA) ), true ); if( $api_arr['return_code'] == 'SUCCESS' ){   include __DIR__ . '/phpqrcode.php';  header('content-type:image/png');  echo Qrcode::png( $api_arr['code_url'] , false , 'H' , 6 ,2 );}

<?php #微信統一下單接口$url='https://api.mch.weixin.qq.com/pay/unifiedorder'; $param=[  #公眾賬號ID  'appid'=>'****',  'mch_id'=>'***',  'nonce_str'=>uniqid(),  'sign_type'=>'MD5',  'body'=>'test',  'detail'=>'detail',  'out_trade_no'=>date('Ymd').rand(10000,99999),  'total_fee'=>1,  'spbill_create_ip'=>$_SERVER['SERVER_ADDR'],  'notify_url'=>'http://****/test.php',  'trade_type'=>'NATIVE',];ksort($param); $sign_str=urldecode(http_build_query($param)); $sign_str.='&key=8934e7d15453e97507ef794cf7b0519d'; $sign_str=md5($sign_str); $param['sign']=strtoupper($sign_str); //print_r($param);exit;function CurlPost($url, $param = [], $is_post = 1, $timeout = 5 ){  //初始化curl  $curl = curl_init();   // 設置請求的路徑  curl_setopt($curl, CURLOPT_URL, $url);   if ($is_post == 1) {    //設置POST提交    curl_setopt($curl, CURLOPT_POST, 0);  }   //顯示輸出結果 1代表 把接口返回的結果當作一個字符串處理  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);   // 設置請求超時時間  curl_setopt($curl, CURLOPT_TIMEOUT, $timeout);   curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);    if ($is_post == 1) {    //提交數據 -- 設置post提交的數據    if (is_array($param)) {       //http_build_query      curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($param));    } else {      curl_setopt($curl, CURLOPT_POSTFIELDS, $param);    }  }   //執行請求  $data = $data_str = curl_exec($curl);  //處理錯誤  if ($error = curl_error($curl)) {    $log_data = array(      'url' => $url,      'param' => $param,      'error' => '<span style="color:red;font-weight: bold">' . $error . '</span>',    );     var_dump($log_data);    exit;  }   # 關閉CURL  curl_close($curl);    //json數據轉換為數組  $data = json_decode($data, true);   if (!is_array($data)) {    $data = $data_str;  }   #調用玩接口之后寫一個日志  $log = [    'url' => $url,    'param' => $param,    'response' => $data_str  ];  file_put_contents(__DIR__ . '/wechat.log', print_r($log, true), 8);   return $data; } function arrzxml($arr){  $xml='<xml version="1.0" encoding="UTF-8">';  foreach($arr as $key=>$value){    if(is_numeric($value)){      $xml.="<".$key.">".$value."</".$key.">";    }else{      $xml.="<".$key."><![CDATA[".$value."]]></".$key.">";    }   }  $xml.='</xml>';//  var_dump($xml);exit;  return $xml; } $xml=arrzxml($param);$result=CurlPost($url,arrzxml($param));//echo '<pre/>';var_dump($result);exit;$api_arr=json_decode(simplexml_load_string($result,'SimpleXMLElement',LIBXML_NOCDATA),true);if($result['return_code']=='SUCCESS'){  include __DIR__.'/phpqrcode.php';  header('content-type:image/png');  echo Qrcode::png($api_arr['code_url'],false,'H',6,2); }