Php authorization example on WeChat OAuth2.0 webpage

Example 1. configure the domain name of the authorization callback page, such as www.aaa.com? 2. a third-party webpage simulating a public account, fn_system.php & lt ;? Phpif (empty ($ _ SESSION ['user']) {header (OAuth2.0 web page authorization php example

1. configure the authorization callback page domain name, such as www.aaa.com

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2. a third-party webpage simulating a public account, fn_system.php

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3. when accessing a third-party webpage, if the session information does not exist in the session, go to the login page, fn_wx_login.php

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4. on the login page, assemble the appid, jump back url, and other information, and then jump to the user authorization page.

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5. on the user authorization page, if you select "agree to authorize", The code parameter is included when you jump back to the redirection address of a third-party webpage.

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6. in the redirection url of a third-party webpage, first obtain the code from the request, and then exchange openid and access_token based on the code, then, you can query User information based on the APIs called by openid and access_token.

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