PHP判断字符类型 php判断用户是否关注微信公众号

access_token;
    $subscribe_msg = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=$token&openid=$_GET[openid]";
    $subscribe = json_decode(file_get_contents($subscribe_msg));
    $gzxx = $subscribe->subscribe;
    //
    if($gzxx === 1){
     echo "已关注";
    }else{
    echo "未关注";
    
 }

 _getAccessToken();
$subscribe_msg = 'https://api.weixin.qq.com/cgi-bin/user/info?access_token='.$access_token.'&openid='.$_SESSION['wecha_id'];
$subscribe = json_decode($this - > curlGet($subscribe_msg));
$zyxx = $subscribe - > subscribe;

if ($zyxx !== 1) {
 echo'未关注！';
}
private function _getAccessToken() {
 $where = array('token' = > $this - > token);
 $this - > thisWxUser = M('Wxuser') - > where($where) - > find();
 $url_get = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$this - > thisWxUser['appid'].'&secret='.$this - > thisWxUser['appsecret'];
 $json = json_decode($this - > curlGet($url_get));
 if (!$json - > errmsg) {
 } else {
 $this - > error('获取access_token发生错误：错误代码'.$json - > errcode.',微信返回错误信息：'.$json - > errmsg);
 }
 return $json - > access_token;
}
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