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" >
&nbs
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