PHP+TEXT留言本(五)

  现在我们来讲一下reply.php的代码:
  ---------------------------------
  //reply.php
  <?
   function check_strlen_long($txt)
  {
  $len=strlen($txt);
  $count=0;
  for ($i=0;$i<$len;$i++)
  {
  if (ord($txt[$i])<128)
   { $count=$count+1;}
   if (ord($txt[$i])==10 or ord($txt[$i])==32)
   {$count=0;}
   if ($count>=60)
   {
   $txt[$i]="n";
   $count=0;
   }
  }
   return $txt;
  }
  function encode ($txt)
  {
  $txt=strip_tags($txt);
  $txt=htmlspecialchars($txt);
  $message=StripSlashes($txt);
  return $message;
  }
   $content=file("guest.txt");
   $disptext=$content[$record-1];
  
  if ($job=="addreply" and $replyname!="" and $replycontent!="")
  {
  $content=file("guest.txt");
  $count=count($content);
  $time = date(Y年m月d日H小时i分);
  $ip=$REMOTE_ADDR;
  $replycontent=StripSlashes($replycontent);
  $replyname=encode($replyname);
  $replycontent=htmlspecialchars($replycontent);
   $replycontent=check_strlen_long($replycontent);
  $replycontent=nl2br($replycontent);
  $replycontent=ereg_replace(chr(10),"",$replycontent);
  $content[$record-1]=substr($content[$record-1],0,strlen($content[$i])-1); $content[$record-1]=$content[$record-1]."<!--reply><tr><td colspan=4><ul><font color=#AB00E1>回复内容:</font><br>".$replycontent."<br>回复人大名:".$replyname."<br><font color=#CC33FF>时间:$time 来自:$ip</font></ul><hr size=1 color=blue></td></tr>n";
  $fp=fopen("guest.txt","w");
  for ($i=0;$i<$count;$i++)
   {
   fputs($fp,$content[$i],strlen($content[$i]));
   }
   echo "<meta http-equiv=Refresh content=1;url=guest.php>";
   exit;
  }
   ?>
  <title>zihanonline</title>
  <style>
  <!--
  A:link {text-decoration: none ; color:0000ff}
  A:visited {text-decoration: none; color:004080}
  A:active {text-decoration: none}
  A:hover {text-decoration: underline; color:ff0000}
  BODY {FONT-SIZE: 10p}
  TH {FONT-SIZE: 10pt}
  TD {FONT-SIZE: 10pt}
  -->
  </style>
  <body bgcolor="#FFFFFF" background="back.gif">
  <div align=center >
   <? include('head.htm');?>
   <table border= 1 width= 65% height= 169 cellpadding="8" cellspacing="0" bordercolor="#E3E3E3" >
   <form method= POST action=reply.php >
   <?
   if ($Submit)
   {
   if ($replyname=="" or $replycontent=="")
   {
   echo"<tr align=left valign=middle bgcolor=#F0F0F0> ";
   echo"<td width= 100% height= 31 > ";
   echo "<font color=red>出错了</font>回复人姓名和回复内容必填-www.devdao.com!";
   echo"</td>";
   echo"</tr>";
   }
   }
   ?>
   <? echo $disptext ?>
   <tr align="left" valign="middle" bgcolor="#F0F0F0">
   <td width= 100% height= 31 bgcolor="#FFFFFF" > 回复大名
   <input type= text name= replyname size= 20 >
   </td>
   </tr>
   <tr valign="middle">
   <td width= 100% height= 26 align= left bgcolor="#f0f0f0" >
   <p>回复内容</p>
   </td>
   </tr>
   <tr align="center">
   <td width= 100% height= 52 valign= top bgcolor="#FFFFFF" >
   <textarea rows= 6 name= replycontent cols= 46 wrap="VIRTUAL" ></textarea>
   </td>
   </tr>
   <tr valign="middle" align="center" bgcolor="#F0F0F0">
   <td width= 100% height= 14 bgcolor="#f0f0f0" >
   <input type=hidden name=job value=addreply>
   <input type=hidden name=record value=<? echo $record ?>>
   <input type= submit value= 提交 name=Submit >
   &nbsp;&nbsp;&nbsp;
   <input type=reset value= 重写 name= B2 >
   </td>
   </tr>
   </form>
   </table>
   <?include('bottom.htm');?>
  </div>
  </body>
  </html>
  ------------------
   到此为止,php的代码我们已经写完,剩下的是您要作一个留言本的本头和底部 您可以设计任何的样式.不过记得在本头上面要有至少3个连接:查看 返回主页 发邮件.这样您的留言本系统才算完整.不过由于这是一文本的留言本,所以您不用担心数据库的问题,您只要再写一个guest.txt的文件就完整了.虽然这个留言本没有mysql等等,可是功能仍然不错.而且是完全属于您自己的留言本.好了,下一节我们将为您讲述guest.txt的建立和上传留言本的几个重要步骤.
  未完待续...