<?php
# FileName="Connection_php_mysql.htm"
# Type="MYSQL"
# HTTP="true"
$hostname_php_xls = "localhost";
$database_php_xls = "php_xls";
$username_php_xls = "root";
$password_php_xls = "";
$php_xls = mysql_pconnect($hostname_php_xls, $username_php_xls, $password_php_xls) or trigger_error(mysql_error(),E_USER_ERROR);
?>

ecco qua la connessione...
ti giuro che ci sto sbattendo la testa da sta mattina...