The last time we studied the guest.php file. The specific problems also require readers to practice their own in-depth, but also need some reference books to learn, if you do not have a little knowledge of PHP, I advise you do not want to look down, The author does not have much time and space to step into the purpose and meaning of a php file. Ok, let's do edit.php this file.
-----------
edit.php
?
if ($Submit)
{
if ($SavePassword = = "on")
{Setcookie ("Txtpassword", "$TxtPassword", Time () +30*24*3600);}
Else
{Setcookie ("Txtpassword");}
}
?>
<style type=text/css>
Td {font-size:10pt;}
TEXTAREA
{
Font-family: "The song Body";
font-size:10pt;
}
</style>
<meta http-equiv= "Content-language" content= "ZH-CN" >
<meta http-equiv= "Content-type" content= "text/html; charset=gb2312 ">
<title> Change Message </title>
?
Require ("sys.php");
function ReadValue ($tags, $tage)
{
Global $message, $long, $reply;
$StrStart =strlen (Strstr ($message, $tags))-strlen ($tags);//Remove the starting position of the string where the variable is marked.
$StrEnd =strlen (Strstr ($message, $tage));
$len = $StrStart-$StrEnd;
$StrStart = $long-$StrStart;//start character.
$StrString =substr ($message, $StrStart, $len);
return $StrString;
}
function Save ($record)
{
Global $TxtContent, $TxtEmail, $TxtHomepage, $TxtEmail, $TxtName, $TxtFrom, $TxtReply, $REMOTE _addr, $guestfile;
$content =file ($guestfile, "R");
$space = "";
$time = Date (Y-year m-month D-day H I-hour);
$ip = $REMOTE _addr;
$TxtReply =stripslashes ($TxtReply);
$TxtContent =stripslashes ($TxtContent);
$TxtContent =htmlspecialchars ($TxtContent);
$TxtContent =check_strlen_long ($TxtContent);
$TxtContent =nl2br ($TxtContent);
$Wcontent = "<tr><td><font color= #AB00E1 > Message content:</font><br><!--content>$ txtcontent<!--endcontent> ";
$Wcontent = $Wcontent. " <br><font color= #6633FF > Message:</font><!--name> $TxtName <!--endname> ";
if ($TxtEmail!= "")
{$Wcontent = $Wcontent. " <br><font color= #9900CC > Email </font><a href= "mailto: $TxtEmail" ><!--email> $TxtEmail <!--endemail></a> "." $space ";}
if ($TxtHomepage!= "http://")
{$Wcontent = $Wcontent. " <font color= #9900CC > Home:</font> $TxtHompage <a href= "$TxtHomepage" target=new><!--homepage>$ txthomepage<!--endhomepage></a> ";}
$Wcontent = $Wcontent. " <br><font color= #0000FF > Time: $time from:<!--from> $TxtFrom <!--endfrom> ". $ip." </font> ";
$Wcontent =ereg_replace (CHR), "", $Wcontent);
$Wcontent = $Wcontent. " $TxtReply =ereg_replace (CHR), "", $TxtReply);
$WContent = $Wcontent. $TxtReply. " n ";
$count =count ($content);
$FP =fopen ($guestfile, "w");
for ($i =0; $i < $count; $i + +)
{
if ($i = = $record-1)
{$content [$i]= $WContent;}
Fputs ($fp, $content [$i]);
}
Fclose ($FP);
}
$content =file ($guestfile, "R");
$message = $content [$record-1];
$long =strlen ($message);
$txtcontent =readvalue (' <!--content> ', ' <!--endcontent> ');
$txtname =readvalue (' <!--name> ', ' <!--endname> ');
$txtfrom =readvalue (' <!--from> ', ' <!--endfrom> ');
$txtemail =readvalue (' <!--email> ', ' <!--endemail> ');
$txthomepage =readvalue (' <!--homepage> ', ' <!--endhomepage> ');
$txtcontent =strip_tags ($txtcontent);
$tags = "<!--reply>";
$txtreply =strstr ($message, $tags);
$txtreply =ereg_replace ("" "," "", $txtreply);
if ($Submit)
{
if ($TxtPassword = = $managepwd)
{
if ($TxtName!= "" and $TxtContent!= "")
{
Save ($record);
echo "<meta http-equiv=refresh content=" 1;url=guest.php ">";
Exit
}else {$errorm = "message person name and content must be filled!!";}
}
else {$errorm = "Password error, only administrator has permission to modify!!";}
}
?>
<body bgcolor= "#FFFFFF" background= "Back.gif" >
? Include (' head.htm ');? >
<div align= "center" >
<center>
<table border= "1" width= "68%" height= "to" cellspacing= "0" cellpadding= "7" bordercolor= "#E3E3E3" >
<form action= "edit.php" method=post>
?
if ($errorm and $Submit)
{
echo "<tr>";
echo "<td height=40 colspan=4>";
echo "<font color=red> error,</font> $errorm";
echo "</td>";
echo "</tr>";
}
?>
<tr>
<TD width= "18%" height= "Panax Notoginseng" bgcolor= "#f0f0f0" ><font color= "#000000" > Message name </font></td>
<TD width= "39%" height= "Panax Notoginseng" bgcolor= "#FFFFFF" >
<input type= "text" name= "txtname" size= "" Value=<?echo "$txtname"?>>
</td>
<TD width= "11%" height= "Notoginseng" bgcolor= "#f0f0f0" ><font color= "#000000" > from </font></td>
<TD width= "32%" height= "Panax Notoginseng" bgcolor= "#FFFFFF" >
<input type= "text" name= "Txtfrom" size= "" Value=<?echo "$txtfrom"?>>
</td>
</tr>
<tr>
<TD width= "18%" height= "bgcolor=" #f0f0f0 "><font color=" #000000 "> Home address </font></td>
<TD width= "39%" height= "bgcolor=" "#FFFFFF" >
<input type= "text" name= "Txthomepage" size= "" Value=<?echo "$txthomepage"?>>
</td>
<TD width= "11%" height= "bgcolor=" #f0f0f0 "><font color=" #000000 ">Email</font></td>
<TD width= "32%" height= "bgcolor=" "#FFFFFF" >
<input type= "text" name= "Txtemail" size= "" Value=<?echo "$txtemail"?>>
</td>
</tr>
<tr bgcolor= "#FFFFFF" >
<TD height= "colspan=" 4 "><font color=" #000000 "> Message content </font></td>
</tr>
<tr bgcolor= "#f0f0f0" >
<TD height= "colspan=" "4" valign= "Middle" align= "center" >
<textarea rows= "6" name= "Txtcontent" cols= "a" wrap= "VIRTUAL" ><? echo "$txtcontent"?>
</textarea>
</td>
</tr>
<tr bgcolor= "#FFFFFF" >
<TD height= "colspan=" 4 "valign=" Middle "align=" center "> <font color=" #000000 "> Modify password </font>
<input type= "Password" name= "Txtpassword" size= "ten" Value=<?echo "$TxtPassword"?>>
<font color= "#000000" > whether to save password </font>
<input type= "checkbox" Name= "Savepassword" value= "on" checked>
<input Type=hidden Name=record value=<? echo "$record"?>>
<input type= "Submit" value= "I want to Revise" name= "submit" >
</td>
</tr>
? echo "$txtreply"?>
<input Type=hidden name=txtreply value= " echo "$txtreply"?> ">
</form>
</table>
</center>
</div>
<?include (' bottom.htm ');? >
</body>
----------
I have made an interpretation of the annotated place. PHP can be embedded in the HTML code, so it's nice to write code.
Cond...
