Micro-trust access

Overview

Access_token is the public number's globally unique ticket, the public number calls each interface to use the Access_token. Developers need to be properly saved. Access_token storage should be reserved for at least 512 character spaces. The validity period of the Access_token is currently 2 hours and needs to be refreshed periodically, and repeated acquisition will cause the last acquired access_token to fail.

Acquisition of Access_token

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<?php define ("APPID", "Your APPID");   Define ("Appsecret", "Your Appsecret"); $token _access_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=". APPID. "&secret=". Appsecret; $res = file_get_contents ($token _access_url); Gets the contents of the file or gets the content of the network request//echo $res; $result = Json_decode ($res, true); Accepts a JSON-formatted string and converts it to a PHP variable $access _token = $result [' Access_token '];   echo $access _token; Php>