mayi_cms/include/wxlogin/wxlogin.php

<?php

function wx_login($appid, $scope, $state, $callback)
{
	$login_url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=' . $appid . '&redirect_uri=' . urlencode($callback) . '&response_type=code' . '&scope=' . $scope . '&state=' . $state . '&connect_redirect=1#wechat_redirect';
	header('Location:' . $login_url);
}

define('WXLOGIN', 1);
$actionkey = isset($_GET['actionkey']) ? trim(htmlspecialchars($_GET['actionkey'])) : '';
$data = '';
@include '../../data/caches/wxlogin.php';
$appid = $data['appid'];
$appsecret = $data['appsecret'];
$callback = $data['callback'] . '?actionkey=' . $actionkey;
$scope = 'snsapi_userinfo';
$state = 'mymps';
wx_login($appid, $scope, $state, $callback);

?>