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Whats wrong with my pagination code


liam1412
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Hi

I have tried to integrate pagination into my forum and its throwing back a whole load of undefined index errors etc.

Please can you help


This is what I have



[code]while
($fetch_replies = mysql_fetch_array($sql_answer_result)){
if($_GET['page'])
{
$page = $_GET['page'];
}else{
$page = 1;
}
$max = 20;
$cur = (($page * $max) - $max);
$total_rows = mysql_num_rows($sql_answer_result);
$total_pages = ceil($total_rows / $max);

for($i = 1; $i <= $total_pages; $i++)
{
if($page == $i)
{
echo '<b>".$i."</b>';

}else{

echo '<a href="?page='.$next.'">Next ></a>';

}
}

$ans_text = $fetch_replies['ans_text'];
$ans_id = $fetch_replies['ans_id'];
$ans_topic_id = $fetch_replies['ans_topic_id'];
$ans_text = nl2br($ans_text);
$ans_text = BBCODE($ans_text);
?>
<tr>
    <td valign="center" width="150" bgcolor="#565656"><p class="grey">
<?php echo $fetch_replies['ans_datetime'];?>
<br />
<br />
<?php echo $fetch_replies['ans_poster_username'];?>
<br />
<img src="images/profilepics/vw.jpg" width="50" heigth="50" border="2" />
</p></td>
    <td valign="top" width="450" bgcolor="#6d6d6d">
<table width="450" cellspacing="0" cellpadding="0" border="0">
<tr>
    <td colspan="2"><p class="grey"><?php echo $ans_text; ?></p></td>
</tr>
<tr>
    <td width="350" align="right"></td>
    <td width="100" align="right">
<br />
<br />
<br />
<br />
<?php if($fetch_replies['ans_poster_username'] == $_SESSION['username']){
?>
<a href="edit_reply.php?ans_id=<?php echo $ans_id ?>&ans_topic_id=<?php echo $ans_topic_id; ?>"><img src="images/edit_post.jpg" width="25" height="25" border="0" alt="Edit Reply" /></a>&nbsp;&nbsp;
    <?php
};
?>
</td>
</tr>
</table>
</td>
</tr>[/code]
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Okay this is my entire page.

I have found a couple of errors and edited I now have one error.

Its saying that the index page is undefined on line 165
and then it is echoing

".$i."

This i repeated 3 times as this is how many record it is retrieving.


[code]<?php
session_start();
include 'header.html';
$topic_id = $_GET['topic_id'];

function BBCODE($bbcode)
{
//the bbcode tags..
$bbc_a=array(
"[strike]",
"[/strike]",
"[b]",
"[/b]",
"[u]",
"[/u]",
"[big]",
"[/big]",
"[huge]",
"[/huge]",
"[e_mail]",
"[/e_mail]",
"[url]",
"[/url]",
"::smile::",
"::mad::",
"::sad::",
"::rolleyes::",
"::smirk::",
"::wink::",
"::surprised::",
"::thinking::",
"::tongue::",
"::cool::",
);

//bbcode gets converted to..
$bbc_b=array(
"<strike>",
"</strike>",
"<b>",
"</b>",
"<u>",
"</u>",
"<font size=4>",
"</font>",
"<font size=8>",
"</font>",
"<a href=\"mailto:",
"\">E-MAIL LINK</a>",
"<a href=\"",
"\" target=\"blank\">WEB LINK</a>",
"<img src='images/smilies/smile.gif' />",
"<img src='images/smilies/mad.gif' />",
"<img src='images/smilies/sad.gif' />",
"<img src='images/smilies/rolleyes.gif' />",
"<img src='images/smilies/smirk.gif' />",
"<img src='images/smilies/wink.gif' />",
"<img src='images/smilies/surprised.gif' />",
"<img src='images/smilies/thinking.gif' />",
"<img src='images/smilies/tongue.gif' />",
"<img src='images/smilies/cool.gif' />",
);

$bbc_num=count($bbc_a);
$loop=0;
while($loop<$bbc_num)
{
$bbcode=str_replace($bbc_a[$loop], $bbc_b[$loop], $bbcode);
$loop++;
}

return $bbcode;


$host = 'localhost';
$db_username = 'root';
$db_password = '';
$db_name = 'klubdeutsch';
$table_name_topic = 'forum_question';
$table_name_answer = 'forum_answer';
$user_level = '1';

mysql_connect("$host" , "$db_username" , "$db_password")or die("Cannot Connect to Server");
mysql_select_db("$db_name")or die("Cannot connect to Databse");

$sql_topic_query = "SELECT * FROM forum_question WHERE topic_id = $topic_id";
$sql_get_topic = mysql_query($sql_topic_query);
$sql_fetch_topic = mysql_fetch_array($sql_get_topic);

$topic_id = $sql_fetch_topic['topic_id'];
$topic = $sql_fetch_topic['topic'];
$topic_text = $sql_fetch_topic['topic_text'];
$topic_text = nl2br($topic_text);
$topic_text = BBCODE($topic_text);
$topic_start_datetime = $sql_fetch_topic['topic_start_datetime'];
$topic_started_by = $sql_fetch_topic['topic_starter_name'];
$topic_view = $sql_fetch_topic['topic_view'];
$topic_view = ($topic_view + 1);
$topic_reply = $sql_fetch_topic['topic_reply'];

$sql_answer_query = "SELECT * FROM forum_answer WHERE ans_topic_id = '$topic_id' ORDER BY ans_id";
$sql_answer_result = mysql_query($sql_answer_query);

$sql_no_posts_query = "SELECT * FROM forum_question WHERE topic_id = '$topic_id'";
$sql_no_posts_result = mysql_query($sql_no_posts_query);
$no_posts_result = mysql_fetch_array($sql_no_posts_result);
$no_of_posts = $no_posts_result['topic_reply'];
$no_of_views = $no_posts_result['topic_view'];
$topic_status = $no_posts_result['topic_status'];

if($topic_status == 0){
$topic_update = 4;}
elseif($topic_status == 1){
$topic_update = 5;}
elseif($topic_status == 2){
$topic_update = 6;}
elseif($topic_status == 3){
$topic_update = 7;}
?>

<br />
<table align="center" width="600" cellspacing="2" cellpadding="0" border="0">
<tr>
    <td width="500"><p class="header2"><?php echo $topic; ?></p></td>
<td align="right" width="100"><a href="post_reply.php?topic_id=<?php echo $topic_id?>" onmouseover="chgImg('postreply','On')" onmouseout="chgImg('postreply','Off')"><img src="images/postreplyOff.jpg" width="100" border="0" name="postreply"></a></td>
</tr>
</table>
<table class="border" align="center" width="600" cellspacing="2" cellpadding="3" border="0">
<tr>
    <td valign="top" width="150" bgcolor="#565656"><p class="grey">
<?php echo $topic_start_datetime ?>
<br />
<br />
<?php echo $topic_started_by ?><br />
<img src="images/profilepics/bmw.jpg" width="50" height="50" border="2" />
<br />
</td>
    <td colspan="2" valign="top" width="450" bgcolor="#6d6d6d">
<table width="450" cellspacing="0" cellpadding="0" border="0">
<tr>
    <td colspan="2"><p class="grey"><?php echo $topic_text; ?></p></td>
</tr>
<tr>
<td width="410"><br /></td>
    <td width="40" align="right">
<br />
<br />
<br />
<br />
<?php
if($topic_started_by == $_SESSION['username']){
?>
<a href="edit_topic.php?topic_id=<?php echo $topic_id ?>"><img src="images/edit_post.jpg" width="25" height="25" border="0" alt="Edit Post" /></a>&nbsp;&nbsp;
    <?php
};
?>
</td>
</tr>
</table>
</td>

<?php
while
($fetch_replies = mysql_fetch_array($sql_answer_result)){
if($_GET['page'])
{
$page = $_GET['page'];
}else{
$page = 1;
}
$max = 20;
$cur = (($page * $max) - $max);
$total_rows = mysql_num_rows($sql_answer_result);
$total_pages = ceil($total_rows / $max);

for($i = 1; $i <= $total_pages; $i++)
{
if($page == $i)
{
echo '<b>".$i."</b>';

}else{

echo '<a href="?page='.$next.'">Next ></a>';

}
}

$ans_text = $fetch_replies['ans_text'];
$ans_id = $fetch_replies['ans_id'];
$ans_topic_id = $fetch_replies['ans_topic_id'];
$ans_text = nl2br($ans_text);
$ans_text = BBCODE($ans_text);
?>
<tr>
    <td valign="center" width="150" bgcolor="#565656"><p class="grey">
<?php echo $fetch_replies['ans_datetime'];?>
<br />
<br />
<?php echo $fetch_replies['ans_poster_username'];?>
<br />
<img src="images/profilepics/vw.jpg" width="50" heigth="50" border="2" />
</p></td>
    <td valign="top" width="450" bgcolor="#6d6d6d">
<table width="450" cellspacing="0" cellpadding="0" border="0">
<tr>
    <td colspan="2"><p class="grey"><?php echo $ans_text; ?></p></td>
</tr>
<tr>
    <td width="350" align="right"></td>
    <td width="100" align="right">
<br />
<br />
<br />
<br />
<?php if($fetch_replies['ans_poster_username'] == $_SESSION['username']){
?>
<a href="edit_reply.php?ans_id=<?php echo $ans_id ?>&ans_topic_id=<?php echo $ans_topic_id; ?>"><img src="images/edit_post.jpg" width="25" height="25" border="0" alt="Edit Reply" /></a>&nbsp;&nbsp;
    <?php
};
?>
</td>
</tr>
</table>
</td>
</tr>

<?php
}
if($no_of_views == 199){
$sql_hot_topic = "UPDATE forum_question SET topic_status = $topic_update WHERE topic_id = '$topic_id'";
mysql_query($sql_hot_topic)or die("unable to update topic status");
}
$sql_update_topic_view = "UPDATE forum_question SET topic_view = '$topic_view' WHERE topic_id = '$topic_id'";
mysql_query($sql_update_topic_view)or die("failed to update topic_reply");
mysql_close();
?>

[/code]


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It seems like a couple of posts out of my thread have gon??????


The problem I am now having is this

My limit is set to 10.  There are 13 record in my query but the pagination reads.

PREV 1 NEXT 

None of them are links. Its acting like there are less than 10 records. GRRRRRRRRRRRRRRRRRRRR

[code]<?php
$limit = 10;
$query_count = "SELECT count(*)FROM forum_answer WHERE ans_topic_id = $topic_id";
$result_count = mysql_query($query_count);
$total_rows = mysql_num_rows($result_count);

if(empty($page)){
$page = 1;
}

$limitvalue = $page * $limit - ($limit);

$topic_query = "SELECT * FROM forum_answer WHERE ans_topic_id = $topic_id ORDER BY ans_id LIMIT $limitvalue, $limit";
$topic_result = mysql_query($topic_query)or die("Error: " . mysql_error());


while
($fetch_replies = mysql_fetch_array($topic_result)){
$ans_text = $fetch_replies['ans_text'];
$ans_id = $fetch_replies['ans_id'];
$ans_topic_id = $fetch_replies['ans_topic_id'];
$ans_text = nl2br($ans_text);
$ans_text = BBCODE($ans_text);
?>
<tr>
    <td valign="center" width="150" bgcolor="#565656"><p class="grey">
<?php echo $fetch_replies['ans_datetime'];?>
<br />
<br />
<?php echo $fetch_replies['ans_poster_username'];?>
<br />
<img src="images/profilepics/vw.jpg" width="50" height="50" border="2" />
</p></td>
    <td valign="top" width="450" bgcolor="#6d6d6d">
<table width="450" cellspacing="0" cellpadding="0" border="0">
<tr>
    <td colspan="2"><p class="grey"><?php echo $ans_text; ?></p></td>
</tr>
<tr>
    <td width="350" align="right"></td>
    <td width="100" align="right">
<br />
<br />
<br />
<br />
<?php if($fetch_replies['ans_poster_username'] == $_SESSION['username']){
?>
<a href="edit_reply.php?ans_id=<?php echo $ans_id ?>&ans_topic_id=<?php echo $ans_topic_id; ?>"><img src="images/edit_post.jpg" width="25" height="25" border="0" alt="Edit Reply" /></a>&nbsp;&nbsp;
    <?php
};
?>
</td>
</tr>
</table>
</td>
</tr>
<?php

}
if($page != 1){
$pageprev = $page--;
echo("<a href=\"$PHPSELF&page=$pageprev\">PREV</a> ");
}else{

echo ("PREV");

$numofpages = $total_rows / $limit;
for($i = 1; $i <= $numofpages; $i++){
  if($i == $page){
            echo($i." ");
        }else
            echo("<a href=\"$PHP_SELF&page=$i\">$i</a> "); 
        }
}
if(($total_rows % $limit) != 0){
  if($i == $page){
            echo($i." ");
        }else{
            echo("<a href=\"$PHP_SELF&page=$i\">$i</a> ");
        }
}

if(($total_rows - ($limit * $page)) > 0){
  $pagenext  = $page++;
  echo("<a href=\"$PHP_SELF?page=$pagenext\">NEXT</a>");
}else{
      echo("NEXT"); 
 
}
if($no_of_views == 199){
$sql_hot_topic = "UPDATE forum_question SET topic_status = $topic_update WHERE topic_id = '$topic_id'";
mysql_query($sql_hot_topic)or die("unable to update topic status");
}
$sql_update_topic_view = "UPDATE forum_question SET topic_view = '$topic_view' WHERE topic_id = '$topic_id'";
mysql_query($sql_update_topic_view)or die("failed to update topic_reply");
mysql_close();
?>
[/code]

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