PHP连接MYSQL数据库语句

最基本的连接，输出

$conn = mysql_connect('localhost', 'root', '');
//mysql_query("SET NAMES 'gbk'", $conn);
mysql_select_db('sim', $conn);
$strSQL = "select * from sim_stui_nfo";
$rs=mysql_query($strSQL);

if (($num=mysql_num_rows($rs))>0){
    $row=mysql_fetch_array($rs);

    echo $row["name"];
}