ACCESS TOKEN_PHP Tutorial

Access Token

In the development of WeChat public platform interfaces, Access Token occupies a very important position, which is equivalent to the key to enter various interfaces. Only with this key can you have the authority to call various other special interfaces.

Access_token is the globally unique ticket of the public account. The public account needs to use access_token when calling each interface. Under normal circumstances, the access_token is valid for 7200 seconds. Repeated acquisition will cause the last access_token to become invalid.

Official accounts can use AppID and AppSecret to call this interface to obtain access_token. AppID and AppSecret can be obtained in development mode (you need to be a developer and your account has no abnormal status). Note that the https protocol must be used when calling all WeChat interfaces.

Interface call request description

http request method: GET

https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET

Parameter Description

参数	是否必须	说明
grant_type	是	获取access_token填写client_credential
appid	是	第三方用户唯一凭证
secret	是	第三方用户唯一凭证密钥，既appsecret

Parameters

Is it necessary

Description

grant_type

Yes

参数	说明
access_token	获取到的凭证
expires_in	凭证有效时间，单位：秒

Get access_token and fill in client_credential

appid

Yes

Unique credentials for third-party users

secret

Yes

<span $appid</span> = "wxbad0b4x543aa0b5e"<span ;
</span><span $appsecret</span> = "ed222a84da15cd24c4bdfa5d9adbabf2"<span ;
</span><span $url</span> = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=<span $appid</span>&secret=<span $appsecret</span>"<span ;

</span><span $ch</span> =<span  curl_init();
curl_setopt(</span><span $ch</span>, CURLOPT_URL, <span $url</span><span );
curl_setopt(</span><span $ch</span>, CURLOPT_SSL_VERIFYPEER, <span FALSE</span><span ); 
curl_setopt(</span><span $ch</span>, CURLOPT_SSL_VERIFYHOST, <span FALSE</span><span ); 
curl_setopt(</span><span $ch</span>, CURLOPT_RETURNTRANSFER, 1<span );
</span><span $output</span> = curl_exec(<span $ch</span><span );
curl_close(</span><span $ch</span><span );
</span><span $jsoninfo</span> = json_decode(<span $output</span>, <span true</span><span );
</span><span $access_token</span> = <span $jsoninfo</span>["access_token"];

Third-party user unique credential key, appsecret

Return instructions

Under normal circumstances, WeChat will return the following JSON data packet to the official account:

{"access_token":"ACCESS_TOKEN","expires_in":7200}

Parameters	Description
access_token	Obtained voucher
expires_in	Voucher validity time, unit: seconds

When an error occurs, WeChat will return error code and other information. The JSON data packet example is as follows (this example is an invalid AppID error): {"errcode":40013,"errmsg":"invalid appid"}

Code implementation Special Instructions In OAuth2.0 authentication, we will see another Access Token, please pay attention to the difference. http://www.bkjia.com/PHPjc/626601.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/626601.htmlTechArticleAccess Token In the development of the WeChat public platform interface, Access Token occupies a very important position, which is equivalent to entering various A key to an interface. Only with this key can you call various other special features...