使用PHP制作新闻系统的思路
author:一佰互联 2019-05-01   click:174
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 $now;     } 第四步,让我们考虑如何将新闻显示出来 //上面已经定义的函数库... //表格的定义...... <center><FONT SIZE=5 FACE=""georgia",verdana,Arial,Lucida Sans,Gill Sans">$title "; if ($admin==1)     {     echo " Admin ";     }  echo " - News</font> </td></tr> "; $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      {     $link="<a href=$REQUEST_URL?show_news_sub=ALL><FONT SIZE=-2  FACE=""georgia",verdana,Arial,Lucida Sans,Gill Sans">All news</font></a>";          $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));   <TD align=left><FONT SIZE=-2  FACE=""verdana",Arial,Lucida Sans,Gill Sans">$show<br>$cleannews</font</TD> "; } echo "     ";              } if ($admin==1) { echo " <center><a href=admin/index.php><FONT SIZE=-2 FACE=""verdana",Arial,Lucida Sans,Gill Sans">返回</font></a></center> "; } if ($link)     {     echo "<center><br><br>$link</center>";     } 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 【本文版权归作者与奥索网共同拥有,如需转载,请注明作者及出处】