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HomeBackend DevelopmentPHP Tutorial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) 

复制代码 代码如下:

nbsp;html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
 
 
 
银子留言板 Version 1.0 
 
 
 
 
 
    
 
        
     
                
  • 偶要看留言
  •  
                
  • 偶要发表
  •  
                            //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 
                ?> 
                
  • 退出管理
  •  
                 
                } 
                else 
                { 
                ?> 
                
  • 偶要管理
  •  
                }?> 
            
 
    
 
    
银子留言板 Version 1.0
 


3 footer.php(公用底部文件)

复制代码 代码如下:

$counterFile="conter.xml"; 
function displayCounter($counterFile){ 
$fp  =  fopen($counterFile,"rw"); 
$num =  fgets($fp,5); 
$num += 1; 
print "
银子留言板 Version 1.0   您是第 "."$num"." 位无聊的银
"; 
exec("rm -rf $counterFile"); 
exec("echo $num > $counterFile"); 

if(!file_exists($counterFile)){ 
exec("echo 0 > $counterFile"); 

displayCounter($counterFile); 
?> 
 
 

4 index.php(首页)
复制代码 代码如下:

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">一个简单的PHP&MYSQL留言板源码第1/2页_php实例" /> } ?> if($row[4]){ ?> ">一个简单的PHP&MYSQL留言板源码第1/2页_php实例" />  }?> if($_SESSION["key"]==1){ ?> IP:= $row[6] ?>  ">更改 ">删除}?>


    

留言内容:


    
= nl2br(htmlspecialchars($row[5])) ?>


    }
}
else
    {
        echo "
无数据......
";
    }
?>



$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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