Problemas con mysql_db_query

[privatefta]

hola es que tengo este código para print en xml

Código PHP:

<?php
 
// Edit this 4 strings to match your system
$host = "localhost";
$user = "panel";
$pass = "panellenap";
$db = "panel";
 
$conn = @mysql_connect($host,$user,$pass) or die ("ERROR! No connection to database!");
$sql = mysql_db_query($db,"SELECT * FROM usuarios ORDER BY id_usuario ASC");
echo "<xml-user-manager ver=\"1.0\">\n";
while($line=mysql_fetch_row($sql)) {
    if ($line[2] == "") :
        $name = "";
    else :
        $name = "name=\"".$line[2]."\" ";
    endif;
    
    if ($line[3] == "") :
        $password = "";
    else :
        $password = "password=\"".$line[3]."\" ";
    endif;
    
    if ($line[6] == "") :
        $profiles = "";
    else :
        $profiles = "profiles=\"".$line[6]."\" ";
    endif;
    
    if ($line[7] == "") :
        $maxconnections = "";
    else :
        $maxconnections = "max-connections=\"".$line[7]."\" ";
    endif;
 
    if ($line[8] == "") :
        $enabled = "";
    else :
        $enabled = "enabled=\"".$line[8]."\" ";
    endif;
    
    if ($line[9] == "false" OR $line[9] == "") :
        $mapexclude = "";
    else :
        $mapexclude = "map-exclude=\"".$line[9]."\" ";
    endif;
    
    if ($line[10] == "false" OR $line[10] == "") :
        $debug = "";
    else :
        $debug = "debug=\"".$line[10]."\" ";
    endif;
    
    echo "<user ".$name.$password.$profiles.$maxconnections.$enabled.$mapexclude.$debug."/>\n";
}
echo "</xml-user-manager>";
mysql_close($conn);
?>
 

y me tira eror

Deprecated: Function mysql_db_query() is deprecated in C:\xampp\htdocs\panel\genxml\genxml.php on line 10

Deprecated: mysql_db_query() [function.mysql-db-query]: This function is deprecated; use mysql_query() instead in C:\xampp\htdocs\panel\genxml\genxml.php on line 10