Mysql数据库连接脚本

<?php
$arguments = getopt("d:");／／命令行配置选择的库名
$dbname = $arguments['d'] ? $arguments['d'] : 'mydbname';／／若未传库名则默认选择mydbname库
$dbhost = '127.0.0.1';
$dbport = '3306';
$dbuser = 'root';
$dbpsw = 'mypsw';
@$link = mysql_connect($dbhost.':'.$dbport, $dbuser, $dbpsw);
if (!$link) {
die('Could not connect: '.mysql_error());
}
echo 'Connected to dbhost '.$dbhost.' successfully'."\r\n";
mysql_select_db ($dbname, $link) or die ('Can\'t use '.$dbname.' : '.mysql_error());
echo 'Selected database '.$dbname.' successfully'."\r\n";
mysql_close($link);
?>