使用当前代码正确设置用户标识值

我已经尝试了几天来，但我没有想法。

我正在使用第三方软件，并且正在尝试集成另一个程序，该程序需要USERID来识别登录其他应用程序的用户。

下面的代码是登录脚本，我尝试在 cookie 中设置用户 id，但它没有正确选择与用户名相关的 id。主程序不使用PHP会话，只使用cookie。

如果您能帮助我正确设置，我将不胜感激。

此外，Users DB 表的结构很简单：userid, username, password

include_once("deps.php");
function pv($value) {
    $value2 = trim($value);
    if (get_magic_quotes_gpc()) {
        return addslashes($value2);
    } else {
        return mysql_real_escape_string($value2);
    }
}

function pcrtlang($string) {
    require("deps.php");
    $rs_connect = @mysql_connect($dbhost, $dbuname, $dbpass) or die("Couldn't connect the db");
    $rs_select_db = @mysql_select_db($dbname, $rs_connect) or die("Couldn't select the db in pcrtlang");
    mysql_query("SET NAMES utf8");
    $safestring = pv($string);
    $findbasestring = "SELECT * FROM languages WHERE basestring LIKE BINARY '$safestring'";
    $findbasestringq = @mysql_query($findbasestring, $rs_connect);
    if(mysql_num_rows($findbasestringq) == 0) {
        $addstring = "INSERT INTO languages (language,languagestring,basestring) VALUES ('en-us','$safestring','$safestring')";
        @mysql_query($addstring, $rs_connect);
    }
    $findstring = "SELECT languagestring FROM languages WHERE basestring LIKE BINARY '$safestring' AND language = '$mypcrtlanguage'";
    $findstringq = @mysql_query($findstring, $rs_connect);
    if(mysql_num_rows($findstringq) == 0) {
        return "$string";
    } else {
        $rs_result_qs = mysql_fetch_object($findstringq);
        return "$rs_result_qs->languagestring";
    }
}

if (array_key_exists("RURI", $_REQUEST)) {
    $ruri = $_REQUEST['RURI'];
} else {
    $ruri = "../repair";
}
if (array_key_exists("METHOD", $_REQUEST)) {
    $method = $_REQUEST['METHOD'];
} else {
    $method = "";
}

if(isset($_POST["username"])&&isset($_POST["password"])) {
    $user = $_POST["username"];
    $pass = md5($_POST["password"]);
    $userid =$_POST["userid"];
    $validated = false;
    #check code here
    require("deps.php");
    $rs_connect = @mysql_connect($dbhost, $dbuname, $dbpass) or die("Couldn't connect the db");
    $rs_select_db = @mysql_select_db($dbname, $rs_connect) or die("Couldn't select the db");
    mysql_query("SET NAMES utf8");
    $ipaddress = $_SERVER['REMOTE_ADDR'];
    if (function_exists('date_default_timezone_set')) {
        date_default_timezone_set("$pcrt_timezone");
    }
    $currentdatetime = date('Y-m-d H:i:s');
    #Set time here for how many minutes before login attempts are expired.
    $loginattempts_expiretime_minutes = 60; 
    $lesshourstamp = (strtotime($currentdatetime) - (60 * $loginattempts_expiretime_minutes));
    $lesshour = date('Y-m-d H:i:s', $lesshourstamp);
    $rs_clear_ip = "DELETE FROM loginattempts WHERE attempttime < '$lesshour'";
    $rs_result = mysql_query($rs_clear_ip, $rs_connect);
    $rs_find_ip = "SELECT * FROM loginattempts WHERE ipaddress = '$ipaddress' AND username = '$user'";
    $rsfind_result = mysql_query($rs_find_ip, $rs_connect);

    if(isset($passwords[$user])) if($passwords[$user]==$pass) $validated = true;
    if(!$validated) {
        require("deps.php");
        $rs_connect = @mysql_connect($dbhost, $dbuname, $dbpass) or die("Couldn't connect the db");
        $rs_select_db = @mysql_select_db($dbname, $rs_connect) or die("Couldn't select the db");
        mysql_query("SET NAMES utf8");
        $ipaddress = $_SERVER['REMOTE_ADDR'];
        if (function_exists('date_default_timezone_set')) {
            date_default_timezone_set("$pcrt_timezone");
        }
        $currentdatetime = date('Y-m-d H:i:s');
        $rs_insert_ip = "INSERT INTO loginattempts (username,ipaddress,attempttime) VALUES ('$user','$ipaddress','$currentdatetime');";
        $rs_result = mysql_query($rs_insert_ip, $rs_connect);
    }
    $userloginattempts = mysql_num_rows($rsfind_result);
    #Set max login attempts here
    $maxloginattempts = 4;
    if($userloginattempts > $maxloginattempts) {
        $validated = false;
        $exceededattempts = 1;
    }

    if($validated) {
        if(isset($cookiedomain)) {
            setcookie("username", $user, time()+36000, "/","$cookiedomain");
            setcookie("password", $pass, time()+36000, "/","$cookiedomain"); 
        } else {
            setcookie("username", $user, time()+36000, "/");
            setcookie("password", $pass, time()+36000, "/");
        }
        if("$method" == "POST") {
            if (preg_match("/store/i", $ruri)) {
                $gotouri = urlencode("../store");
                header("Location: loglogin.php?gotouri=$gotouri");
            } else {
                $gotouri = urlencode("../repair");
                header("Location: loglogin.php?gotouri=$gotouri");
            }
        } else {
            $gotouri = urlencode($ruri);
            header("Location: loglogin.php?gotouri=$gotouri");
        }
    } else {
        $failedlogin = "1"; 
    }
//End login code
}
?>
<!DOCTYPE html>
<html>
<head>
    <?php
    if(!isset($pcrt_stylesheet)) {
    echo "<link rel='"stylesheet'" type='"text/css'" href='"../repair/style.css'">";
    } else {
    echo "<link rel='"stylesheet'" type='"text/css'" href='"../repair/$pcrt_stylesheet'">";
    }
    ?>
    <link rel="stylesheet" href="../repair/fa/css/font-awesome.min.css">
    <link rel="stylesheet" type="text/css" href="ani.css">
    <title><?php echo pcrtlang("Login"); ?></title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <script>
    <!--
    function sf(){document.loginbox.username.focus();}
    // -->
    </script>

</head>
<body onLoad=sf()>
    <center><br><br><img src="<?php echo "$logo"; ?>" class="animated bounceIn">
    <br><br><br>
    <table>
        <tr>
          <td>
            <form name="loginbox" action="login.php" method="post">
                <font class=text12b><?php echo pcrtlang("Username"); ?>:</font>
          </td>
          <td>
              <input type="text" name="username" class="textbox">
          </td>
        </tr>
        <tr>
            <td>
              <font class=text12b><?php echo pcrtlang("Password"); ?>:</font>
            </td>
            <td>
              <input type="password" name="password" class="textbox">
            </td>
        </tr>
        <tr>
          <td colspan=2 style="text-align:center;">
             <input type="hidden" name="RURI" value="<?php echo "$ruri"; ?>">
             <input type="hidden" name="METHOD" value="<?php echo "$method"; ?>"><br>
             <input type="submit" value="<?php echo pcrtlang("Login"); ?>" class="button">
             </form>
          </td>
        </tr>
    </table>
    <?php
    if (isset($failedlogin)) {
        if (isset($exceededattempts)) {
            echo "<br><br><div class=notify style='"width:250px'"><font class=textred12>".pcrtlang("Sorry, max login attempts exceeded").".</font></div>";
        } else {
            echo "<br><br><div class=notify style='"width:250px'"><font class=textred12>".pcrtlang("Sorry, Invalid username/password combination").".</font></div>";
        }
    }
    ?>
    </center>
</body>