A problem with URL redirection in WeChat development

Post the code first:

<code>    public function getWxopneURL()
    {
        $code = I('get.code','','trim');
        if(empty($code)){
           $redirect_uri = urlencode(get_url());
            $url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid='.$this->appid.'&redirect_uri='.$redirect_uri.'&response_type=code&scope=snsapi_base&state=oauth&connect_redirect=1#wechat_redirect';
            file_put_contents('url.log', $url);
            return header("Location:".$url);
        }

        //获取access_token
        $access_token = file_get_contents("https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$this->appid."&secret=".$this->key."&code=".$code."&grant_type=authorization_code");
        $access_token = json_decode($access_token,true);
        return $access_token['openid'];
    }</code>

<code>/**
 * 获取当前页面完整URL地址
 */
function get_url($val='',$valb='',$var=array()) {
    $sys_protocal = isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://';

    if($valb == 'img'){
        if (strstr($val,'http:')) return $val;
        return $sys_protocal.(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '').$val;
    }elseif($valb == 'url'){
        $var['token'] = $GLOBALS['userinfo']['token'];
        if (strstr($val,'http:')) return $val;
        return $sys_protocal.(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '').U($val,$var);
    }
    if ($GLOBALS['userinfo']){
        $var = $_GET;
        if(count(explode('emp_car',$_SERVER['REQUEST_URI'])) == 1)
        {
            $var['token'] = $GLOBALS['userinfo']['token'];
        }
        $relate_url = U('',$var) ;
    }else{
        $php_self = $_SERVER['PHP_SELF'] ? $_SERVER['PHP_SELF'] : $_SERVER['SCRIPT_NAME'];
        $path_info = isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '';
        $relate_url = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : $php_self.(isset($_SERVER['QUERY_STRING']) ? '?'.$_SERVER['QUERY_STRING'] : $path_info);
    }
    return $sys_protocal.(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '').$relate_url;
}</code>

====================================
The problem is as follows:
A connection needs to be opened in the WeChat menu.
The link looks like this:

http://rusice.tunnel.qydev.co...

Locally, I use ugrok for penetration on the win platform. is accessible.
But today I put it on the server, Linux environment. Something went wrong.

The captured url is like this:

<code>https://open.weixin.qq.com/connect/oauth2/authorize?appid=wxdd658ea6d4dbc597&redirect_uri=http%3A%2F%2Fwx.mytbu.cn%2Findex.php%3Fg%3DActivity%26m%3DDoVote&response_type=code&scope=snsapi_base&state=oauth&connect_redirect=1#wechat_redirect</code>

Later I tried it, without parameters, only domain name is possible.
It is also possible to bring one parameter, but not two parameters. I've been looking for this problem all day long, I hope someone can help me, thank you!

Reply content:

Post the code first:

<code>    public function getWxopneURL()
    {
        $code = I('get.code','','trim');
        if(empty($code)){
           $redirect_uri = urlencode(get_url());
            $url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid='.$this->appid.'&redirect_uri='.$redirect_uri.'&response_type=code&scope=snsapi_base&state=oauth&connect_redirect=1#wechat_redirect';
            file_put_contents('url.log', $url);
            return header("Location:".$url);
        }

        //获取access_token
        $access_token = file_get_contents("https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$this->appid."&secret=".$this->key."&code=".$code."&grant_type=authorization_code");
        $access_token = json_decode($access_token,true);
        return $access_token['openid'];
    }</code>

<code>/**
 * 获取当前页面完整URL地址
 */
function get_url($val='',$valb='',$var=array()) {
    $sys_protocal = isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://';

    if($valb == 'img'){
        if (strstr($val,'http:')) return $val;
        return $sys_protocal.(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '').$val;
    }elseif($valb == 'url'){
        $var['token'] = $GLOBALS['userinfo']['token'];
        if (strstr($val,'http:')) return $val;
        return $sys_protocal.(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '').U($val,$var);
    }
    if ($GLOBALS['userinfo']){
        $var = $_GET;
        if(count(explode('emp_car',$_SERVER['REQUEST_URI'])) == 1)
        {
            $var['token'] = $GLOBALS['userinfo']['token'];
        }
        $relate_url = U('',$var) ;
    }else{
        $php_self = $_SERVER['PHP_SELF'] ? $_SERVER['PHP_SELF'] : $_SERVER['SCRIPT_NAME'];
        $path_info = isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '';
        $relate_url = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : $php_self.(isset($_SERVER['QUERY_STRING']) ? '?'.$_SERVER['QUERY_STRING'] : $path_info);
    }
    return $sys_protocal.(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '').$relate_url;
}</code>

====================================
The problem is as follows:
A connection needs to be opened in the WeChat menu.
The link looks like this:

http://rusice.tunnel.qydev.co...

Locally, I use ugrok for penetration on the win platform. is accessible.
But today I put it on the server, Linux environment. Something went wrong.

The captured url is like this:

<code>https://open.weixin.qq.com/connect/oauth2/authorize?appid=wxdd658ea6d4dbc597&redirect_uri=http%3A%2F%2Fwx.mytbu.cn%2Findex.php%3Fg%3DActivity%26m%3DDoVote&response_type=code&scope=snsapi_base&state=oauth&connect_redirect=1#wechat_redirect</code>

Later I tried it, without parameters, only domain name is possible.
It is also possible to bring one parameter, but not two parameters. I've been looking for this problem all day long, I hope someone can help me, thank you!

Have you configured a trusted domain name for authorized login?

This is a problem with URL parsing rules, because &m= is recognized as a parameter of the WeChat interface by default.
redirect_uri=http://wx.mytbu.cn/index.php?g=Activity&m=DoVote The parameter g after ? is considered to be the parameter of your page index.php, and the m after & is considered to be Parameters of the previous WeChat interface authorize page.

The problem that took 2 days was finally solved. It turned out that the callback domain name needed to be configured. It took me a long time to find a modified entry below. . . Is this a trap?

What’s even more annoying is the bug in WeChat’s official demo