WeChat ?? ??? ???? ?? ?? ??:

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

1 1??: ???? ?? ?? ? ??? ?????
2 2??: ??? ?? ???? ?? access_token ??
3 3??: access_token ?? ??(??? ??)
4 4??: ??? ?? ????(snsapi_userinfo ??? ???)

1 ?? ????

WeChat ?? ??? ?? ??(?? ????)? ??? ???? ????(??? ??? ?? ?????? ??? ? ????? ?? ????? snsapi_base ? snsapi_userinfo? ???) ???? ?????. ?? ???? ???:

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

"??? ??? ? ????."?? ???? ???? ????? ?? ??????, ?? ????? ???? ?? ?? ??? ??? ?????.

?? ?? ??: ?? ??? ?? ??? ?? ??? WeChat? ?? ??? ??? ? ??? ????? ??? ?? ?? ?? ??? ?? ????? ??? ?? ??? ?????. ??? ???? ?? ???? ?? ???? ??????

? ?:

AppID - ?? ??? ?? ???
REDIRECT_URI - ?? URL
SCOPE - ?? snsapi_base(?? ???? ???? ?? ?? ???? ???? ???? openid? ?? ??) ?? snsapi_userinfo(?? ???? ???? openid? ?? ???, ??, ??? ??? ? ??)???. ??, ???? ????? ???? ???? ???? ???? ??? ?? ? ????.)
STATE - ???? a-zA-Z0-9? ???? ?? ??? ??? ? ????

2 ??? ???? ?? access_token ??? ?????

???? ??? ???? ???? ????_uri/?code =CODE&state=STATE? ?????.
??? ?? STATE ?????? ??? ?????.

?? ??:

<code class="hljs php">$code = I(&#39;get.code&#39;);
if (empty($code)) {
   //todo 非微信訪問
   exit(&#39;</code>&#39;);
 }else{ //授權(quán)后操作 }

???? ??? ?? ? ????. ?? access_token ??? ?????.

??? ??? ? ?? ??? ???? access_token? ?????:

https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret= SECRET&code=CODE&grant_type =authorization_code

appid - ?? ??? ?? ???
secret - key
code - ?? ??? ??
grant_type - ?? Authorization_code

?? ??:

<code class="hljs bash">$url = &#39;https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=&#39; . C(&#39;wechat.AppID&#39;) . &#39;&secret=&#39; . C(&#39;wechat.AppSecret&#39;);
$str = file_get_contents($url);
$str = json_decode($str, true);
$access_token = $str[&#39;access_token&#39;];</code>

???? access_token? ????
?? ??? ?? ???? ??? ? ? ????. ?? ?? TP ?????? ????

<code class="hljs php">$access_token = S(&#39;access_token&#39;);
if (empty($access_token)) {
  $url = &#39;https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=&#39; . C(&#39;wechat.AppID&#39;) . &#39;&secret=&#39; . C(&#39;wechat.AppSecret&#39;);
  $str = file_get_contents($url);
  $str = json_decode($str, true);
  $access_token = $str[&#39;access_token&#39;];
  S(&#39;access_token&#39;, $access_token, 3600);
}</code>

access_token, openid(???? ?? ???)? ?? ?????. WeChat ?? ????? ??? ?? ?????. ???? ?? ???, ???? ?? ??? ????? ?? ? ???? ?? ??? ????? ??? ? ??? OpenID? ???? ?? ??? ?????

openid? WeChat ???? ???? ?????. ???? ???? ????? ?? ?? openid? ?? ? ??????? ???? ??? ? ????. ? openid? ???? ???? ????. ? ??? ??? ???? ?? ?? ??? ??? ?????? user_id? ?? ?????.

3 ?? ? ?? ??? ??? ???? access_token? ?? ????.

4 ??? ?? ????(snsapi_userinfo ??? ???)

??????? ? WeChat ID ????? ????? ?? ???? ?????. ???? ? ?? ? ????? 4??? ?? ??? ??? ?? ?(??? ??? ?? ???? ?? ??? snsapi_userinfo?? ???? access_token ? openid pull ??? ??? ??? ? ??) ???? ?????. ??????? ? WeChat ???? ??????

(openid? ??)

?? ??

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

access_token - ??? ?? access_token
openid - ?? ??? ?? ???

?? ??:

<code class="hljs php">$access_token = S(&#39;access_token&#39;);
if (empty($access_token)) {
  $url = &#39;https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=&#39; . C(&#39;wechat.AppID&#39;) . &#39;&secret=&#39; . C(&#39;wechat.AppSecret&#39;);
  $str = file_get_contents($url);
  $str = json_decode($str, true);
  $access_token = $str[&#39;access_token&#39;];
  S(&#39;access_token&#39;, $access_token, 3600);
}</code>

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