php $HTTP_COOKIE_VARS 实例投票资料限制
<?php
if ($http_cookie_vars["vote"]) {
echo "<script>alert('您已经投过票了,请不要重复投票');history.back();</script>";
exit;
}
$vcount = $_post["vcount"];
$lld = $_post["jump"];
$tys = $_post["tys"];
if (!$vcount) {
echo "<script>alert('您还没有选择任何投票项目');history.back();</script>";
exit;
}
$db = @mysql_connect("localhost", "root", "root") or die("数据库教程连接失败");
mysql_select_db("vote", $db);
if ($vcount && $lld) {
if ($tys == "1") {
$sql = "update vote set vcount=vcount+1 where id=$vcount";
$result = mysql_query($sql, $db);
setcookie("vote", "vote", time() + 3600);
echo "<script>alert('投票成功!');location.href='vote.php?id=$lld';</script>";
} else {
for ($i = 0; $i < sizeof($vcount); $i++) {
$sql1 = "update vote set vcount=vcount+1 where id=$vcount[$i]";
$result1 = mysql_query($sql1, $db);
}
setcookie("vote", "vote", time() + 3600);
echo "<script>alert('投票成功!');location.href='vote.php?id=$lld';</script>";
}
}
?>教程链接:http://www.phprm.com/develop/fs4277.html
随意转载~但请保留教程地址★