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Php 函数获取用户id箭头聊天

php mysql

Php 函数获取用户id箭头聊天,php,mysql,get,customization,userid,Php,Mysql,Get,Customization,Userid,我试图在我的网站上安装Arrowchat，但找不到userid Arrowchat的原始cod如下 /** * This function returns the user ID of the logged in user on your site. Technical support will not * help you with this for stand-alone installations. You must purchase the profession

我试图在我的网站上安装
Arrowchat
，但找不到
userid

Arrowchat
的原始cod如下

/**
     * This function returns the user ID of the logged in user on your site.  Technical support will not
     * help you with this for stand-alone installations.  You must purchase the professional installation
     * if you are having trouble.
     *
     * Suggestion: Check out the other integration files in the functions/integrations directory for
     * many examples of how this can be done.  The easiest way is to get the user ID through a cookie.
     *
     * @return the user ID of the logged in user or NULL if not logged in
     */

    function get_user_id() 
    {

        $userid = NULL;

        if (isset($_COOKIE['userid']))
        {
            $userid = $_COOKIE['userid'];
        }

        return $userid;

    }
这在config.php中

define('DB_USERTABLE','users'); 
define('DB_USERTABLE_NAME','username'); 
define('DB_USERTABLE_USERID','idu'); 
define('DB_USERTABLE_AVATAR','image');
我的mysql用户ID是
idu

在哪些文件上<是网站的code>index.php还是arrowchat的
integration.php
@Fred ii和此添加代码必须在index.php或integration.php上？从index.php确定没有错误，从integration.php得出此
ob_start（）：输出处理程序“ob_gzhandler”与第22行ob_start（）上的/home/u276919318/public_html/arrowchat/external.php中的“zlib output compression”冲突：无法在第22行的/home/u276919318/public_html/arrowchat/external.php中创建缓冲区。第351行的/home/u276919318/public_html/arrowchat/external.php中的数组到字符串转换未定义变量：第359行的/home/u276919318/public_html/arrowchat/external.php中的user_avatar