一个简单的PHP&MYSQL留言板源码第1/2页_php实例
初学PHP,花了几晚上写了个留言板,请高手指正
p.s.我的空间不支持PHP,不能提供演示了T_T
数据库结构:(库名:lyb)
表一: admin
字段: id(int11) name(varchvr) password(varchvr)
表二: lo
字段: id(int11) username(varchvr) sex(varchvr) qq(varchvr) email(varchvr) info(text) ip(varchvr) submit_time(datetime)
1 conn.php(连接数据库文件)
mysql_connect("localhost","root","");//连接数据库
mysql_select_db("lyb");//选择数据库
?>
2 header.php(公用头部文件)
nbsp;html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- 偶要看留言
- 偶要发表
- 退出管理
- 偶要管理
//session_start();//DOFY同学指出本句前不能有任何输出内容,就此改正
if($_SESSION["key"]==1){//如果获取的SESSION为1则显示管理项
?>
}
else
{
?>
}?>
3 footer.php(公用底部文件)
$counterFile="conter.xml";
function displayCounter($counterFile){
$fp = fopen($counterFile,"rw");
$num = fgets($fp,5);
$num += 1;
print "
exec("rm -rf $counterFile");
exec("echo $num > $counterFile");
}
if(!file_exists($counterFile)){
exec("echo 0 > $counterFile");
}
displayCounter($counterFile);
?>
4 index.php(首页)
require_once("conn.php");
require_once("header.php");
session_start();
//分页代码开始
$pagesize = 10;//设置每页显示条数
$rs = mysql_query("select count(*) from lo");//取得记录总数,计算总页数用
$myrow = mysql_fetch_array($rs);
$numrows = $myrow[0];//计算总记录
$pages = intval($numrows/$pagesize);
if($numrows%$pagesize)$pages++;//设置页数
if(isset($_GET['page']))
{
$page = intval($_GET['page']);
}
else
{
$page = 1;//设为第一页
}
$offset = $pagesize*($page-1);//计算记录偏移量
//分页代码结束
$sql = "select id,username,sex,qq,email,info,ip,DATE_FORMAT(submit_time, '%Y年%m月%d日 %T' ) from lo order by id desc limit $offset,$pagesize";//用到了DATE-FORMAT格式化日期格式
$result = mysql_query($sql);
$num = mysql_num_rows($result);
if($num>0){
while($row = mysql_fetch_array($result))
{
//echo print_r($row);
if($row[2]=="男")//这个使性别改成你想要的名称^_^
{
$sex = "帅锅";
}
else
{
$sex = "美女";
}
?>
第 [= $row[0] ?>] 条留言
留言人:= $row[1]?> 性别:= $sex ?> 留言时间:= $row[7] ?> if($row[3]) {?> &Site=http://www.loai.cn&Menu=yes">" /> } ?> if($row[4]){ ?> ">
" /> }?> if($_SESSION["key"]==1){ ?> IP:= $row[6] ?> ">更改 ">删除}?>
留言内容:
}
}
else
{
echo "
}
?>
$first=1;
$prev=$page-1;
$next=$page+1;
$last=$pages;
if($page==1&&$pages>1)
{
echo "首页 | ";
echo "上一页 | ";
echo "下一页 | ";
echo "尾页 | ";
}
elseif($page>=1&&$page!=$pages&&$num>0)
{
echo "首页 | ";
echo "上一页 | ";
echo "下一页 | ";
echo "尾页 | ";
}
elseif($page==$pages&&$page!=1)
{
echo "首页 | ";
echo "上一页 | ";
echo "下一页 | ";
echo "尾页 | ";
}
elseif($page==$pages)
{
echo "首页 | ";
echo "上一页 | ";
echo "下一页 | ";
echo "尾页 | ";
}
else
{
echo "首页 | ";
echo "上一页 | ";
echo "下一页 | ";
echo "尾页 | ";
}
?>
共 = $pages ?> 页 | 当前第 = $page ?> 页 | 共 =$numrows ?> 条留言
mysql_close();
?>
require_once("footer.php");
?>

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