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php+mysql写的简单留言本实例代码_PHP

时间:2021-07-01 10:21:17 帮助过:16人阅读

guestbook.php:


















高三<6>班留言本本















include ("connect.rec");

$qh=mysql_query("SELECT COUNT(*) AS rcnt FROM guestbook");

$data=mysql_fetch_array($qh);

$nr=$data["rcnt"];

//判断偏移量参数是否传递给了脚本,如果没有就使用默认值0

if (empty($offset))

{

$offset=0;

}
//查询结果(这里是每页20条,但你自己完全可以改变它)

//$result=mysql_query("SELECT * from guestbook ORDER BY time desc LIMIT $offset, 5");
$result=mysql_query("SELECT * from guestbook LIMIT $offset, 5");

//显示返回的5条记录

while ($data=mysql_fetch_array($result))
{
printf("姓名:%s
",$data["name"]);
printf("EMAIL:%s
",$data["mail"]);
printf("个人主页:%s
",$data["url"]);
printf("来自:%s
",$data["ip"]);
printf("留言时间:%s
",$data["time"]);
printf("主题:%s
",$data["title"]);
printf("内容:%s
",$data["ly"]);
printf("
");
}

//下一步,要写出到其它页面的链接

if($offset) //如果偏移量是0,不显示前一页的链接
{
$preoffset=$offset-5;
print "前一页 n";
}

//计算总共需要的页数

$pages=ceil($nr/5); //$pages变量现在包含所需的页数

for ($i=1; $i <= $pages; $i++)

{

$newoffset=5*$i-5;

print "$i n";

}

//检查是否是最后一页
$next = $offset+5;
if ($next<$nr)
{
print "下一页 n";
}
printf("返回")
?>






ly.php:

include ("connect.rec");
$name = $T1;
$mail = $T2;
$url = $T3;
$title = $T4;
$time = date( "Y-m-j H:i:s" );
$ip = getenv("REMOTE_ADDR");
$ly = $S1;

$result = mysql_query("insert into guestbook (name,mail,url,ip,time,title,ly) values ('$name','$mail','$url','$ip','$time','$title','$ly')");
if ($result == 1)
{
echo("留言成功!");
printf("");
}
else
{
echo("留言失败!");
printf("返回");
}
?>

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