Pagination Problem

zachatk1 · May 15, 2011

I don't understand why this is happening. I use the same exact code (but different mysql table) and the pagination works fine.

Here's the code:

.....

<body id="set-database">
<div class="wrapper">
<?php
include("navigation.php");
?>
  <div class="full">

<?php
$make = $_POST["sel1"];
$model = $_POST["sel2"];
echo "$make - $model";

if ( $make == "--MAKES--" )
{
  echo "<div class=\"red\">Please select a Make</div>";
}
else
{

  echo "<center><font color=\"#3333FF\">$make</font> - <font color=\"#3333FF\">$model</font></center><br />";


$mysql_host = --
$mysql_database=  --
$mysql_user = --
$mysql_password = --

$conn = mysql_connect("$mysql_host","$mysql_user","$mysql_password") or trigger_error("SQL", E_USER_ERROR);
$db = mysql_select_db("$mysql_database",$conn) or trigger_error("SQL", E_USER_ERROR);

// find out how many rows are in the table 
$sql = "SELECT COUNT(*) FROM ACTIVE WHERE MODEL='$model'";
$result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR);
$r = mysql_fetch_row($result);
$numrows = $r[0];

// number of rows to show per page
$rowsperpage = 5;
// find out total pages
$totalpages = ceil($numrows / $rowsperpage);

// get the current page or set a default
if (isset($_GET['currentpage']) && is_numeric($_GET['currentpage'])) {
   // cast var as int
   $currentpage = (int) $_GET['currentpage'];
} else {
   // default page num
   $currentpage = 1;
} // end if

// if current page is greater than total pages...
if ($currentpage > $totalpages) {
   // set current page to last page
   $currentpage = $totalpages;
} // end if
// if current page is less than first page...
if ($currentpage < 1) {
   // set current page to first page
   $currentpage = 1;
} // end if

// the offset of the list, based on current page 
$offset = ($currentpage - 1) * $rowsperpage;


$sql = "SELECT * FROM ACTIVE WHERE MODEL='$model' ORDER BY INDEX_ID DESC LIMIT $offset, $rowsperpage";
$result = mysql_query($sql, $conn) or die('Error: ' . mysql_error());

echo "
<table width=100% align=center border=1 class=\"mod\"><tr>
<td align=center bgcolor=#00FFFF><b>Rating</b></td>
<td align=center bgcolor=#00FFFF><b>Title</b></td>
<td align=center bgcolor=#00FFFF><b>Make/Model</b></td>
<td align=center bgcolor=#00FFFF><b>Type</b></td>
<td align=center bgcolor=#00FFFF><b>Difficulty</b></td>
<td align=center bgcolor=#00FFFF><b>Comments</b></td>
<td align=center bgcolor=#00FFFF><b>Views</b></td>
</tr>"; 
   
     while ($row = mysql_fetch_assoc($result)) {
     { // Begin while
      $title = $row["TITLE"];
      $type = $row["TYPE"];
      $difficulty = $row["DIFFICULTY"];
      $comments = $row["COMMENT_TOTAL"];
      $id = $row['INDEX_ID'];
      $rating = $row["RATING_AVERAGE"];
      $make = $row["MAKE"];
      $model = $row["MODEL"];
      $views = $row["HITS"];

     echo "
     <tr>
      <td><div class=\"\">$rating/10</div></td>
      <td><div class=\"\"><a href=\"mod.php?id=$id\">$title</a></div></td>
      <td><div class=\"\">$make - $model</div></td>
      <td><div class=\"\">$type</div></td>
      <td><div class=\"\">$difficulty</div></td>
      <td><div class=\"\">$comments</div></td>
      <td><div class=\"\">$views</div></td>
     </tr>";
    }
   }
   echo "</table><br />"; 
    /******  build the pagination links ******/
echo "<center>";
// range of num links to show
$range = 3;
echo "<i>Page: </i>";
// if not on page 1, don't show back links
if ($currentpage > 1) {
   // get previous page num
   $prevpage = $currentpage - 1;
   // show < link to go back to 1 page
   echo " <a stylehref='{$_SERVER['PHP_SELF']}?currentpage=$prevpage'>Previous</a> - ";
} // end if 

// loop to show links to range of pages around current page
for ($x = ($currentpage - $range); $x < (($currentpage + $range) + 1); $x++) {
   // if it's a valid page number...
   if (($x > 0) && ($x <= $totalpages)) {
      // if we're on current page...
      if ($x == $currentpage) {
         // 'highlight' it but don't make a link
         echo " <b>$x</b> ";
      // if not current page...
      } else {
         // make it a link
         echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$x'>$x</a> ";
      } // end else
   } // end if 
} // end for
                 
// if not on last page, show forward and last page links        
if ($currentpage != $totalpages) {
   // get next page
   $nextpage = $currentpage + 1;
    // echo forward link for next page 
   echo " - <a href='{$_SERVER['PHP_SELF']}?currentpage=$nextpage'>Next</a> ";
} // end if
/****** end build pagination links ******/
mysql_close($conn);
}
echo "$pagination</center>";
?>
<br />
<FORM><INPUT TYPE="button" class="btn" VALUE="Back" onClick="history.go(-1);return true;"> </FORM> 
   </div>
<?php
include("footer.html");
?>

When I click the link for the next page and goes to it, there is nothing in the table (so the information isn't there). So the links and everything bring you the correct page, but that page doesn't have any of the information. Like I said, I use the same exact code except it pulls different information and that works no problem.

Thanks!

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