? ??? ??? ??? WeChat ?? ??? ?? ???? ??? ?? ???? ???? ?? ??? ???? ??? ??? ??? ?? ?????? WeChat ??? ???? ??? ??? ?? ???????. WeChat ?? ?? ?? ? ???? ??? ??? ??? ? ????

??? ?? ?? ????? ??? ???? ?? ? ??? ?? ?? ???? ?????? ???? ? ?????.

? ??? ??? ?????? ?? ??? ???? ????? ???? ???? ???? ????. ?????? ?? ???

(? ?? ?? ??? ??? ???? ????. ? ?? ??? PHP ? ?? ??? ?????)

//自定義請求接口函數(shù)，$data為空時(shí)發(fā)起get請求，$data有值時(shí)發(fā)情post請求
function http_url($url,$data=null){
    $ch = curl_init();
    curl_setopt($ch,CURLOPT_URL,$url);
    curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
    curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,0);
    curl_setopt($ch,CURLOPT_RETURNTRANSFER,TRUE);
    if(!empty($data)){
        curl_setopt($ch,CURLOPT_POST,1);
        curl_setopt($ch,CURLOPT_POSTFIELDS,$data);
    }
    $res = curl_exec($ch);
    if(curl_errno($ch)){
        echo "error:".curl_error($ch);
        exit;
    }
    curl_close($ch);
    return $res;
}

(?? ???? ????? ? ??? Tencent?? ????? ??? ????. WeChat ?? ???? ??? ??)

? ?????. 1. ?? ?? ??? ???? ???

1. WeChat ?? ??? ??? ? ??? ??? ???? ?? ???? ?? ???? ?? ?????? "

?? - ????? ?? - ? ??? - ? ?? - ?? ??? ??? ?? ?? ? ??" ?? ???? ???? ???. ?? ?? ??? ??? ?????. ???? URL? ?? ??? ??(???)? ????? http://? ?? ???? ??? ???? ???.

2 ?? ?? ??? ?? ?? ??? ??? ????. ?? ??? ??(?: ???? ??? ???) ??? ??? www.qq.com???. ?? ? ? ??? ?? ??? ???? http://www.qq.com/music.html ? http://???. OAuth2.0 ???? www.qq.com/login.html? ??? ? ????. ?, http://pay.qq.com, http://music.qq.com, http://qq.com? OAuth2.0 ??? ??? ? ????

3. ?? ?? ???? ?3??? ??? ??. ??? ??? ?? ?? ??? ? ??? ????. ?3?? ?? ??? ???? ? ??? ??? ??? ? ????

2. ???? ??? ???? ???? ? ?????

????? ??:

https://open.weixin.qq .com/connect/oauth2/authorize?appid=APPID&redirect_uri=REDIRECT_URI&response_type=code&scope=SCOPE&state=STATE#wechat_redirect (????? ????? ?????)

function Get_Code()  //獲取code
{
//構(gòu)造請求地址
$code_url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=微信公眾號appid&redirect_uri=請求功后回調(diào)地址&response_type=code&scope=snsapi_userinfo&state=STATE #wechat_redirect";
//跳轉(zhuǎn)到請求地址，應(yīng)為本省設(shè)置了回調(diào)地址，所以不需要使用file_get_content()來請求接口。
header("location:" . $code_url);
exit;
}

3. ??? ??? access_token ? openid

Interface? ????? ? ????. 4. access_token? ???? ?????

?????: https://api.weixin.qq.com/sns/auth?access_token=ACCESS_TOKEN&openid=OPENID

/**
 *  通過獲取到的code來獲取access_token和openid 
 *  $code為獲取到的code
 * 接口的參數(shù)注意換成自己的，如appid和secret
 */
function GetAccess_Token($code)
{
$get_access_token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=appid&secret=secret&code=$code&grant_type=authorization_code";
$res = http_url($get_access_token_url);
return json_decode($res, true);
}

5. , ?? ?? access_token

?????:

https://api.weixin.qq.com/sns/oauth2/refresh_token?appid=APPID&grant_type=refresh_token&refresh_token=REFRESH_TOKEN

/**
 * 檢查access_token是否有效
 * 
 */
function CkeckAccessToken($access_token, $openid)
{
    $check_url = "https://api.weixin.qq.com/sns/auth?access_token=$access_token&openid=$openid";
    $res = http_url($check_url);
    $result = json_decode($res, true);
    if (isset($result['errmsg']) && $result['errmsg'] == 1) {
        return 1;       //access_token有效   
    } else {
        return 0;       //access_token無效 
    }
}

6. ??? ?? ??

?????:

https://api.weixin.qq.com/sns/userinfo?access_token=ACCESS_TOKEN&openid=OPENID&lang=zh_CN

/** * 獲取用戶基本信息 *  */
function Get_User_Info($access_token, $openid){   
     $get_user_info = "https://api.weixin.qq.com/sns/userinfo?access_token=$access_token&openid=$openid&lang=zh_CN";   
      $res = http_url($get_user_info);   
       return json_decode($res, true);
   }

獲取到用戶信息數(shù)據(jù)：

{   
    "openid":" OPENID",
    " nickname": NICKNAME,
    "sex":"1",
    "province":"PROVINCE"
    "city":"CITY",
    "country":"COUNTRY",
    "headimgurl":       "http://thirdwx.qlogo.cn/mmopen/g3MonUZtNHkdmzicIlibx6iaFqAc56vxLSUfpb6n5WKSYVY0ChQKkiaJSgQ1dZuTOgvLLrhJbERQQ4eMsv84eavHiaiceqxibJxCfHe/46",
    "privilege":[ "PRIVILEGE1" "PRIVILEGE2"     ],
    "unionid": "o6_bmasdasdsad6_2sgVt7hMZOPfL"
}

下面上完整代碼：

<?php
    //跳轉(zhuǎn)第三方頁面，獲取用戶基本信息
    // 這是請求頁面也是code的回調(diào)頁面
    session_start();                //啟動session
    if (isset($_GET[&#39;code&#39;])) {     //判斷是否有code傳過來，如果沒有調(diào)用函數(shù)請求code
          $res = GetAccess_Token($_GET[&#39;code&#39;]);     //使用code獲取access_token和openid
          if (CkeckAccessToken($res[&#39;access_token&#39;], $res[&#39;openid&#39;]) == 0) {     //判斷access_token是否有效，如果無效獲取新的access_token
                  $res = GetRefresh_Token($res[&#39;refresh_token&#39;]);                    //或缺新的access_token
            }
           $userinfo = Get_User_Info($res[&#39;access_token&#39;], $res[&#39;openid&#39;]);        //獲取用戶信息
           $_SESSION[&#39;userinfo&#39;] = $userinfo;                                      //將用戶信息存入session中
           $next_url = &#39;http://web/index.php&#39;;                                     //下一個(gè)頁面地址
           header("location:" . $next_url);                                       //獲取到信息后跳轉(zhuǎn)到其他頁面
           exit;
      } else { 
         //獲取code
      Get_Code();
      }
    function Get_Code()  //獲取code{
    $code_url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=appid&redirect_uri=回調(diào)地址&response_type=code&scope=snsapi_userinfo&state=STATE #wechat_redirect";
    header("location:" . $code_url);
    exit;
    }
    /**
    *  通過獲取到的code來獲取access_token和openid
    *
    */
    function GetAccess_Token($code){
        $get_access_token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=appid&secret=secret&code=$code&grant_type=authorization_code";
        $res = http_url($get_access_token_url);
        return json_decode($res, true);
        }
    /**
     * 檢查access_token是否有效
     *
    */
    function CkeckAccessToken($access_token, $openid){
    $check_url = "https://api.weixin.qq.com/sns/auth?access_token=$access_token&openid=$openid"; 
    $res = http_url($check_url);
    $result = json_decode($res, true);
    if (isset($result[&#39;errmsg&#39;]) && $result[&#39;errmsg&#39;] == 1) {
       return 1;       //access_token有效 
     } else { 
       return 0;       //access_token無效 
     }
    }

    /**
     * 如果獲取到的access_token無效，通過refresh_token來刷新access_token 
     */
    function GetRefresh_Token($refresh_token){
        $get_refresh_token_url = "https://api.weixin.qq.com/sns/oauth2/refresh_token?appid=appid&grant_type=refresh_token&refresh_token=$refresh_token";
        $res = http_url($get_refresh_token_url);
        return json_decode($res, true);
     }
    /**
     * 獲取用戶基本信息
     *
     */
    function Get_User_Info($access_token, $openid){
        $get_user_info = "https://api.weixin.qq.com/sns/userinfo?access_token=$access_token&openid=$openid&lang=zh_CN";
        $res = http_url($get_user_info);
        return json_decode($res, true);}
    //自定義請求接口函數(shù)，$data為空時(shí)發(fā)起get請求，$data有值時(shí)發(fā)起post請求
    function http_url($url,$data=null){
       $ch = curl_init();
        curl_setopt($ch,CURLOPT_URL,$url);
        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
        curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,0);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,TRUE);
        if(!empty($data)){    
            curl_setopt($ch,CURLOPT_POST,1);
            curl_setopt($ch,CURLOPT_POSTFIELDS,$data);
         }
         $res = curl_exec($ch);
         if(curl_errno($ch)){
           echo "error:".curl_error($ch);
           exit;
          }
          curl_close($ch);
          return $res;
          }

? ?

? ??? WeChat ?? ?? ? ??? ?? ??? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!