[string comparison failing]

Now that I think about it... I don't know why. Well that makes it easier. Though I'm still curious about why it doesn't want to tell me that the two identical md5 hashes are the same.

[Legal Ownership of PHP System?]

I have been there before. Typically if you are writing something for them, they will own the copyright for it. If you signed a paper or anything, the fine print would probably have said something about that.

[string comparison failing]

Hey all, I'm new. I hope you don't hold that against me. I could really use some help. I have spent the last 3 hours trying to figure out what is wrong with my script. It is a simple login script, data entered by the user is compared with data pulled from a mysql database. It seems to have a problem comparing the password values. I have tried everything that I can think of, yet it has all failed. Any noticable problems?

Login.php, user entered information is posted here.
[code]<?

    require("config.php");
    require("include.php");
    import_request_variables("p", "pv_");

    $pv_pwd = md5($pv_pwd);
    
    $con = mysql_connect($mysql_server, $mysql_user, $mysql_pass);
    $sdb = mysql_select_db($mysql_db, $con);
    $query = "SELECT username, password FROM users WHERE username='" . $pv_uid . "' AND password='" . $pv_pwd . "'";
    //echo "<br><br>" . $query;
    $qu = mysql_query($query, $con);

    $row = mysql_fetch_assoc($qu);
        $uid = $row['username'];
        $pwd = $row['password'];
        
    if(stringcomp(($uid, $pv_uid, 0) == 1) && (stringcomp($pwd, $pv_pwd, 1) == 1))
        echo "Login Success.";
    else
    {
        echo "Login Failed.";
        // Next 2 lines for debugging purposes.
        echo "<br>$pv_uid == $uid<br>" . stringcomp($uid, $pv_uid) . "<br>";
        echo "<br>$pv_pwd == $pwd<br>" . stringcomp($pwd, $pv_pwd) . "<br>";
    }

    mysql_close($con);
    
?>[/code]

include.php, where the stringcomp function is located.
[code]<?php

    //Returns:  0 if both strings are not identical
    //          1 if both strings are identical.
    function stringcomp($string1, $string2, $toup)
    {
        $false = 0;
        $ct = 0;

        if($toup == 1)
        {
            $string1 = strtoupper($string1);
            $string2 = strtoupper($string2);
        }

        if(strlen($string1) <> strlen($string2))
            return 0;

        while($ct < strlen($string1))
        {
            if(ord(substr($string1, $ct, 1)) !== ord(substr($string2, $ct, 1)))
                $false++;

            $ct++;

            if($false <> 0)
                return 0;
            else
                return 1;
        }
    }
?>[/code]

Any help would be greatly appreciated. Thanks