PHP＋TEXT留言本(四)


这一节我们将dele.php和sys.php放上来. 
--------- 
//dele.php<html>
<head> 
<title>删除留言</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:10pt} 
TH {FONT-SIZE:10 pt} 
TD {FONT-SIZE: 10pt} 
--> 
</style>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
</head> 
<?
require("sys.php"); 
if ($Submit) 
{
if ($passWord<>$managepwd) 
  {$errorm="<font color=red>密码错误</font>.无权操作..";}
else  
{ 
$content=file($guestfile); 
$message=$content[$record-1]; 
$count=count($content); 
if ($dele=="delreply") 
     { 
     $replylen=strlen(strstr($message,"<!--reply>")); 
     $long=strlen($message); 
     $len=$long-$replylen; 
     $message=substr($message,0,$len); 
     } 
     else 
     {$message="";} 
//writefile 
$fp=fopen($guestfile,"w"); 
for ($i=0;$i<$count;$i++) 
  { 
  if ($i==($record-1)){$content[$i]=$message;} 
  fputs($fp,$content[$i],strlen($content[$i])); 
  }//end for 
fclose($fp); 
echo "<meta http-equiv=Refresh content="1;url=guest.php">"; 
exit; 
} 
}// end ifSubmit 
$content=file($guestfile); 
$message=$content[$record-1]; 
$found=ereg("<!--reply>",$message); 
?> 
<body bgcolor="#FFFFFF" background="back.gif"> 
<? include("head.htm"); ?> 
<table width="68%" border="1" cellpadding="5" align="center" cellspacing="0" bordercolor="#F2F2F2"> 
<form action=dele.php method=post> 
<? 
  if ($errorm) 
  { 
echo "<tr>";  
echo "<td height=27>$errorm</td>"; 
echo "</tr>"; 
  } 
?> 
  <? echo $message ?> 
    <tr align="center">  
      <td height="37" bgcolor="#f0f0f0">  
        <? 
     if ($found) 
     { 
     echo "<input type=radio name=dele value=delall>"; 
     echo "全部删除 "; 
     echo "<input type=radio name=dele value=delreply checked>"; 
     echo "仅删除回复"; 
     } 
     ?> 
        <font color="#000000">管理密码</font>  
        <input type="password" name="password" size="10"> 
      <input type=hidden name=record value=<? echo "$record";?>> 
        <input type="submit" name="Submit" value="我要删除了"> 
      </td> 
  </tr> 
  </form> 
</table> 
<? include("bottom.htm"); ?> 
</body> 
</html>
------ 
//sys.php 
<title>zihanonline</title><?

$managepwd=zihanonline; 
$guestfile="guest.txt";
function check_strlen_long($txt) 
{ 
  
$count=0; 
$arrtemp=$txt; 
$len=strlen($txt); 
$txt=$txt.            ; 
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>=70)  
  { 
    for ($j=$i;$j<$len;$j++) 
    { 
    $txt[$j+1]=$arrtemp[$j]; 
    } 
  $txt[$i]="n"; 
  $len=$len+1; 
  $txt[$len]=$arrtemp[$len-1]; 
  $count=0; 
  $arrtemp=$txt; 
  }//end if count 
} 
  $txt=trim($txt); 
  return $txt; 
}//end function

function encode ($txt) 
{ 
$txt=strip_tags($txt); 
$txt=htmlspecialchars($txt); 
$message=StripSlashes($txt); 
return $message; 
}
function ubb($txt) 
{
} 
?> 
<body bgcolor="#FFFFFF" background="back.gif"> 
---------- 
注意sys.php中的" $managepwd=zihanonline "一栏中等号后的是留言本的管理密码号,此时是默认的zihanonline.您可以修改为自己的号码. 
未完待续...

补充：Web开发 , php ,