Home  >  Article  >  php教程  >  代码如下:

代码如下:

WBOY
WBOYOriginal
2016-06-21 09:04:111128browse
我们可以用新闻系统来存储新闻,我们可以对新闻进行添加、删除等操作,这样减少了大家的工作量,为什么不实验一下。

首先,建立一个表。
create table news (
n_id int(255) not null auto_increment,
n_date datetime not null,
news text not null,
primary key(n_id)
);

第二步,设置你的登陆信息
$database_user_name="root";                         
$database_password="";                                                 
$database_name="news";                              
$time_offset="0";

第三步,让我们把后面程序用到的东西作成函数,节省篇幅啊!

function connect_db()
    {
    // connects to the database
     
    global $database_user_name, $database_password;
    $db=mysql_connect("localhost",$database_user_name,$database_password);
         
    return $db;
     
    }


function db_name()
    {
    // returns the name of the database
     
    global $database_name;
    $db_name=$database_name;
     
    return $db_name;
     
    }
     
     
     
function get_now()
    {
    // gets current date and time
     
    $db=connect_db();
    $db_name=db_name();
    mysql_select_db($db_name,$db);
    $sql="select now() as now";
    $result=mysql_query($sql,$db);
    $myrow=mysql_fetch_array($result);
    $now=$myrow["now"];
     
    return $now;
     
    }
第四步,让我们考虑如何将新闻显示出来


//上面已经定义的函数库...
//表格的定义......
$title ";
if ($admin==1)
    {
     
    echo " Admin ";
    }  
     
echo " - News


";


$db=connect_db();
$db_name=db_name();
mysql_select_db($db_name,$db);

if ($show_news_sub)
    {
     $show_news = $show_news_sub;
    }
     

if (!ereg("([0-9]{".strlen($show_news)."})",$show_news))
    {
    $show_news="ALL";
    }

if (strtoupper($show_news)=="ALL")
    {
     
    $sql="select date_format(n_date,'%m/%d/%Y') as n_date, date_format(n_date,'%H:%i') as n_time ,news , n_date as date from news order by date desc";
     
    }
else  
    {
     
    $link="All news";
     
     
    $sql="select date_format(n_date,'%m/%d/%Y') as n_date, date_format(n_date,'%H:%i') as n_time , news , n_date as date from news order by n_date desc limit $show_news";
    }
$result=mysql_query($sql,$db);
$num_rows=mysql_num_rows($result);
if($num_rows!=0)
    {
echo "


";

    while($myrow=mysql_fetch_array($result))
        {
        $date=$myrow["n_date"];     
        $time=$myrow["n_time"];         
        $news=$myrow["news"];
        $n_id=$myrow["n_id"];
        if (strtoupper($show_date)=="Y" && strtoupper($show_time)=="Y")
            {
            $show=$date." ".$time;
             
            }
        else if (strtoupper($show_date)=="Y" && strtoupper($show_time)!="Y")     
            {
            $show=$date;
             
            }
        if (strtoupper($show_date)!="Y" && strtoupper($show_time)=="Y")
            {
            $show=$time;
             
            }     
             
        $cleannews=(nl2br($news));

  
$show
$cleannews




";
}
echo "     

";

         


    }
if ($admin==1)
{
echo "
返回

";
}

if ($link)
    {
    echo "


$link
";
     
    }
说明:省略了格式方面的标签,这样看起来思路清晰些,你可要加上啊



Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn