GuestBook

**Creative*php** · Oct 4, 2007, 07:16

Hi im now making a simple guestbook. The problem is about displaying the number of comments . The maximum of commecnts to be display is 4. And i have a button. First, Previous, Next, Last. I have an idea but dont know how to start with it

**Jake Arkinstall** · Oct 4, 2007, 07:18

What do you have so far?

I think it's just a case of some simple pagination.

**Creative*php** · Oct 4, 2007, 07:47

Actually im not started to code yet. Im just planning and thinking of the problem that i may take. And the difficult one is the navigation of displaying the comments. The maximum number of comments to be displayed must be 4. About navigation i have 4 buttons like i said its First,Prev,Nxt,Lst.

**Kon-Tiki** · Oct 4, 2007, 07:52

Yup, that's pagination. It's quite fun to figure out by yourself, although if you're new, it can be a bit frustrating as well. There's a similar question on that a bit earlier. Lemme fetch the link...

**Kon-Tiki** · Oct 4, 2007, 07:57

http://www.sitepoint.com/forums/showthread.php?t=506852

**Jake Arkinstall** · Oct 4, 2007, 07:57

What I would do is have a mysql table for the comments. Use this query to fetch the results. increasing $_GET['commentpage'] will change the page. If $_GET['commentpage'] is not set, then it defaults to 0.

PHP Code:


$page = (isset($_GET['commentpage'])) ? $_GET['commentpage'] : 0;

$start = $page * 4;

$q = mysql_query("SELECT * FROM `comments` LIMIT $start,4");

Make the next button add 1 to $_GET['commentpage'] on the url, for example:

PHP Code:


<?

$nextpage = $page + 1;

echo "<a href=\"?commentpage=".$nextpage."\">Next</a>";

?>

**Creative*php** · Oct 4, 2007, 08:03

Ok let me try your code and also i try my own code even its too long using a for loop.

**Creative*php** · Oct 5, 2007, 00:10

This is the code i use to display the comments, who post it, and the date posted it.

PHP Code:


<?php



$getdata="SELECT * FROM comments ORDER BY com_id DESC";



$getdata2=mysql_query($getdata) or die("Could not get data");



while($getdata3=mysql_fetch_array($getdata2))



{



  $getdata3[com_name]=strip_tags($getdata3[com_name]);

  $getdata3[com_message]=strip_tags($getdata3[com_message]);

  $getdata3[com_date]=strip_tags($getdata3[com_date]);

  



?>

  



  

        <div class="headinglarge"> Title <img src="images/del.gif"></div><div class="adminbtn"><img src="images/admin.gif" width="65" height="52" border="0" ></div>

        <div class="headingsub"> <?php "$getdata3[com_date]"; ?> by <?php echo "$getdata3[com_name]"; ?></div>

        <div class="content"> <?php echo "$getdata3[com_message]"; ?>

                </div><hr>

<?php } ?>

But how im gonna limit that into 4 contents only and the other post must be in the other page when i click the button next or previous or last or first.

**Kon-Tiki** · Oct 5, 2007, 00:22

Use limit in your SQL query.

**Creative*php** · Oct 5, 2007, 00:45

I place the Limit 4. on my sql variable. but what if i press the next button or previous button should i place a limit 4 also. but how im gonna attain that if i meet the last record the next button is not enable

**Kon-Tiki** · Oct 5, 2007, 01:02

You got to make a variable for the first and last number. It won't be LIMIT 0,4, but LIMIT $start, $stop. You change $start and $stop according to the button pressed (Next/Previous/Last/First)

**Creative*php** · Oct 5, 2007, 01:40

Ok but before that how im gonna display an image inside the php code

PHP Code:


<?php
for ($i=0; $i>"$getdata3[com_rating]"; $i++)
{
echo <img src="star.gif">
}
?>

This is not working

**Kon-Tiki** · Oct 5, 2007, 01:43

It doesn't show star.gif any time, I bet. Read your for loop aloud:

i is 0. While i is bigger than getdata3[com_rating], draw star.gif, then increase i by one.

That would require get_data3 to be negative in value, and if that would be the case, it would loop endlessly.

**Creative*php** · Oct 5, 2007, 01:51

oh ! i wrote a wrong for loop. It should be "<=" not ">". The reason the image doesn't show because i put a double quote of it

**Jake Arkinstall** · Oct 5, 2007, 01:52

so, your fixed code there would be:

PHP Code:


<?

for($i = 0; $i < $getdata3; $i++){

     ?><img src="star.gif" alt="star" /><?

}

?>

**Kon-Tiki** · Oct 5, 2007, 01:54

Uhmmm, I see. Dunno how I didn't see this before.

Code:

<?php
for ($i=0; $i<$getdata3["com_rating"]; $i++)
{
echo '<img src="star.gif">';
}
?>

Try it like that. The quotes should be around the associative array key, not the entire variable.

**Creative*php** · Oct 5, 2007, 02:00

Imstuck with the buttons

**Creative*php** · Oct 5, 2007, 02:04

in the images i fixed it already but in the buttons im stuck.

**Kon-Tiki** · Oct 5, 2007, 02:05

Can you show us the code that's giving trouble?

**Creative*php** · Oct 5, 2007, 02:21

PHP Code:



<?php 
for ($x=1; $x>"getdata3[com_id]"; $x++)
{
?>
        <table width="119" border="0" align="center" cellpadding="0" cellspacing="3">
          <tr>
            <td width="16" align="right"><?php $x; ?><img src="images/pfirst.gif" width="15" height="16"></td>
            <td width="16" align="right"><?php $x; ?><img src="images/pprev.gif" width="15" height="16"></td>
            <td width="7" align="center"><?php $x; ?>1</td>
            <td width="16" align="left"><?php $x; ?><img src="images/pnext.gif" width="15" height="16"></td>
            <td width="46" align="left"><?php $x; ?><img src="images/plast.gif" width="15" height="16"></td>
          </tr>
        </table>
        <?php } ?>

I know this is wrong but im still getting the idea of how to to that

**Jake Arkinstall** · Oct 5, 2007, 02:27

don't put quotes around variables.
change

PHP Code:


$x>"getdata3[com_id]";

to

PHP Code:


$x>$getdata3["com_id"];

**Creative*php** · Oct 5, 2007, 02:35

But is it my code do the displaying 4 by 4 . if i click it will go to the 4 comments again and if previous the vice versa. and so on

**Creative*php** · Oct 5, 2007, 03:58

Im really stuck with it. Dont know what to do with my buttons

PHP Code:


<?php

$getdata="SELECT * FROM comments ORDER BY com_id DESC LIMIT 0,4";

$getdata2=mysql_query($getdata) or die("Could not get data");

while($getdata3=mysql_fetch_array($getdata2))

{

  $getdata3[com_name]=strip_tags($getdata3[com_name]);
  $getdata3[com_rating]=strip_tags($getdata3[com_rating]);
  $getdata3[com_message]=strip_tags($getdata3[com_message]);
  $getdata3[com_date]=strip_tags($getdata3[com_date]);
  

?>
  

  
<div class="headinglarge"> Title <?php
for ($i=1; $i<="$getdata3[com_rating]"; $i++)
{
echo '<img src="images/star.gif">';
}
 ?><img src="images/del.gif"></div><div class="adminbtn"><img src="images/admin.gif" width="65" height="52" border="0" ></div>
<div class="headingsub"> <?php echo "$getdata3[com_date]"; ?> by <?php echo "$getdata3[com_name]"; ?></div>
<div class="content"> <?php echo "$getdata3[com_message]"; ?>
</div><hr>
<?php } ?>
        <table width="119" border="0" align="center" cellpadding="0" cellspacing="3">
          <tr>
            <td width="16" align="right"><img src="images/pfirst.gif" width="15" height="16"></td>
            <td width="16" align="right"><img src="images/pprev.gif" width="15" height="16"></td>
            <td width="7" align="center">1</td>
            <td width="16" align="left"><img src="images/pnext.gif" width="15" height="16"></td>
            <td width="46" align="left"><img src="images/plast.gif" width="15" height="16"></td>
          </tr>
        </table>

**Jake Arkinstall** · Oct 5, 2007, 04:16

read post 6

**Creative*php** · Oct 5, 2007, 05:50

what is this all about ?

PHP Code:


(isset($_Get['commentpage']))

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