fission-weChat/api/login.php

<?php
/**
 * Created by PhpStorm.
 * Member: tianyi
 * Date: 2018/4/11
 * Time: 17:42
 */
try {

    $weixin_public = new weixin_public(APPID, APPSECRET, APPURI);
    $redirectUrl = $weixin_public->redirectWithCode();
    echo action_msg($redirectUrl, 200);
    exit;

} catch (MyException $e) {
    echo action_msg($e->getMessage(), $e->getCode());
    exit;
}

?>