微信access_token全局缓存,处理过期

时间:2025-03-18 10:05:13
 //PHP创建access_token.json文件,将access_token 和 生成时间expires 保存在其中,
//{"access_token":"xxxx","expires":1478799661}
function getToken(){
$appid='*';
$appsecret='**';
$file = file_get_contents("./access_token.json",true);
$result = json_decode($file,true);
echo $time();
if (time() > $result['expires']){
$data = array();
$data['access_token'] = getNewToken($appid,$appsecret);
$data['expires']=time()+7000;
$jsonStr = json_encode($data);
$fp = fopen("./access_token.json", "w");
fwrite($fp, $jsonStr);
fclose($fp);
return $data['access_token'];
}else{
return $result['access_token'];
}
}
function getNewToken($appid,$appsecret){
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appid}&secret={$appsecret}";
$access_token_Arr = https_request($url);
return $access_token_Arr['access_token'];
}
function https_request ($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$out = curl_exec($ch);
curl_close($ch);
return json_decode($out,true);
}
echo getToken();