PHP sequential numbering - php

Question

I'm having trouble with my page here:
LINK
My "rank" part of the table keeps resetting back to zero when you click on page 2 and beyond. It doesn't start at 21, it just resets back to zero.
How do I fix that?
<?php
include ("database.php");
if (isset($_GET["page"])) { $page = $_GET["page"]; } else { $page=1; };
$start_from = ($page-1) * 20;
$sql = ("SELECT * FROM voting ORDER BY votepoints DESC LIMIT $start_from, 20") or die ("Error 1.");
$rs_result = mysql_query ($sql) or die (include ("error.html"));
$rank = 1;
?>
<table>
<tr><td>Rank</td><td></td><td>Username</td><td></td><td></td><td></td><td>Vote points</td></tr>
<?php
while ($row = mysql_fetch_assoc($rs_result)) {
?>
<tr>
<td><? echo $rank++; ?></td>
<td></td>
<td><? echo $row["username"]; ?></td>
<td></td>
<td></td>
<td></td>
<td><? echo $row["votepoints"]; ?></td>
</tr>
<?php
};
?>
</table>
<?php
echo '<br>';
echo 'Total Votes: ';
include ("sum.php");
include("database.php");
$sql = "SELECT COUNT(votepoints) FROM voting";
$rs_result = mysql_query($sql);
$row = mysql_fetch_row($rs_result);
$total_records = $row[0];
$total_pages = ceil($total_records / 20);
echo '<span class="text-bleumarin">';
if($page>1)
$pagelink ='prev ';
echo $pagelink;
for ($i=1; $i<=$total_pages; $i++) {
if ($i != $page)
echo "<a href='votes.php?page=".$i."'>".$i."</a> ";
if ($i==$page)
echo '' . $i . ' ';
};
if($page<$total_pages)
$pagelink ='next ';
echo $pagelink;
echo '</span>';
?>

Answer 1

EDIT: this is the line you need to change
*EDIT2: subtracted 1 from page as you set 1 to default.*
<td><? echo (($page-1)*20)+$rank++; ?></td>
This will do:
(0*20) + 1 = 1
(0*20) + 2 = 2
...
(0*20) + 20 = 20
(1*20) + 1 = 21
(1*20) + 2 = 22
...
(1*20) + 20 = 40
(2*20) + 1 = 41
(2*20) + 2 = 42
...
(2*20) + 20 = 60
...
(21*20) + 1 = 421
Note: No code provided when this solution was posted
Assuming you are using a for loop of some sort to keep count:
if (!isset($_GET['page']))
{
$page=0;
}
else
{
$page=$_GET['page'];
}
for($i=1; $i<21; $i++)
{
echo '<tr>';
echo '<td>'.($page*20)+$i.'</td>;' //THIS IS THE RANK LINE
//Other fields
echo '</tr>';
}