vote.php

vote投票系统,希望能给大家带来更多的方便

<?
session_start();
if (session_is_registered("tp"))
{
	echo "<script>alert('您已经投过票了，请稍后再来投票！');location='Default.php';</script>";
	exit;
}
else
{
	$tp="ok";
	session_register("tp");
}
require_once("sys_conf.inc");
$link_id=mysql_connect($DBHOST,$DBUSER,$DBPWD);
mysql_select_db($DBNAME);
mysql_query("SET NAMES 'GBK'");
$sql="update photo set p=p+1 where id=".$_GET["id"];
mysql_query($sql);
echo "<script>alert('投票成功');location='Default.php';</script>";
?>