验证appid和secret是否正确

public function test(){
    $ch = curl_init();
    $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=wx123456789&secret=32123456ergrgr54g7rgr";
    curl_setopt($ch, CURLOPT_TIMEOUT, 60);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST,FALSE);
    curl_setopt($ch, CURLOPT_HEADER, FALSE);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    $res = curl_exec($ch);
    curl_close($ch);
    //取出openid
    $data = json_decode($res,true);
    print_r($data);exit;
}