A simple PHP&MYSQL message board source code page 1/2_PHP tutorial

I am new to PHP and spent a few nights writing a message board. Please correct me
p.s. My space does not support PHP and I cannot provide a demonstration T_T
Database structure: (Library name: lyb)
Table 1: admin
field: id(int11) name(varchvr) password(varchvr)
Table 2: lo
field: id(int11) username(varchvr) sex(varchvr) qq(varchvr) email(varchvr) info(text) ip(varchvr) submit_time(datetime)
1 conn.php (connect database file)

mysql_connect("localhost"," root","");//Connect to the database
mysql_select_db("lyb");//Select the database
?>
2 header.php (public header file)

Copy code The code is as follows:

< body>

🎜>                                                                                                                                          ;I want to publish
                                                   ($_SESSION["key"]==1){//If the obtained SESSION is 1, the management item will be displayed
? Exit management
                                  ?>
                                                         .php">Occasional management
                                             id="head_r">Silver Message Board Version 1.0

3 footer.php (public bottom file)





Copy code

The code is as follows:

$counterFile="conter.xml";
function displayCounter($counterFile){
$fp = fopen($counterFile,"rw");
$num = fgets($fp,5);
$num += 1;
print "

Silver Message Board Version 1.0 You are the "."$num" ." A boring silver

";
exec("rm -rf $counterFile");
exec("echo $num > $counterFile");
}
if(!file_exists($counterFile)){
exec("echo 0 > $counterFile");
}
displayCounter($counterFile);
?>
🎜> The code is as follows:

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 [] 条留言

    

留言人:  性别:  留言时间：     IP:  更改 删除

    

留言内容:

    

}
}
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  页 | 当前第  页 | 共  条留言

mysql_close();
?>

require_once("footer.php");
?>

http://www.bkjia.com/PHPjc/318008.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/318008.htmlTechArticle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...