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how to display images stored in a mysql database using PHP

I have been trying to display image from database using php but i am only getting download prompt whenever i use or click the link. what i want to do is, i want to display it on the web browser. And want to use it in tags.

my code is:

require_once('dbconfig.php');
        $cont=mysql_connect($dbhost,$dbuser,$dbpass) or die("Error Connecting the Database");
        $seldatabase=mysql_select_db($dbselect,$cont);
        $insert = "SELECT `p_mime`, `p_name`, `p_size`, `p_data` FROM $dbtbl_reg_details WHERE `id` = $id";
        $query = mysql_query($insert);
        if ($query)
        {
            if (mysql_num_rows($query)==1)
            {
                $row = mysql_fetch_assoc($query);
                header("Content-Type: image/png");
                header("Content-Length: ". $row['p_size']);
                header("Content-Disposition: inline; filename=". $row['p_name']);
                echo $row[p_data];
            }
        else
        {
            echo "image with id = ".$id." does not exist";
        }
    }
    else
    {
        echo "query failed, image with id = ".$id." does not exist";
    }

And when i use inline for Content-Disposition: then my web page returns a script error on the browser.

So, what should i do to display images on web pages while retrieving it from mysql database

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if (mysql_num_rows($query)==1)
{
    while( @ob_end_clean() );

    header("Content-type:  image/png");
    header("Content-Length: ". $row['p_size']);
    header("Content-Disposition: attachment; filename="{$row['p_name']}"");

    die($row[p_data]);
}

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