my pagination stopped working

jacko_162 · September 15, 2011

I have a page that paginates results, i have a maximum of 6 per page before it goes to page number 2.

now if i have enough results to warrent a page 2 it shows the pagination for 2 pages at tghe bottom.

however when i click the number "2" i get the following in my URL

results.php?query=SELECT * FROM tests WHERE member_id='1' ORDER BY id DESC LIMIT 0, 8&page=8&limit=8

Here is my results.php page

<?php
session_start();

include('Includes/auth.php');
require_once('header.php');


$connect = @mysql_connect("$host", "$username", "$password");

if (!($connect)) // If no connect, error and exit().
{
echo("<p>Unable to connect to the database server.</p>");
exit();
}

if (!(@mysql_select_db($database))) // If can't connect to database, error and exit().
{
echo("<p>Unable to locate the $database.</p>");
exit();
}

if (!($limit)){
$limit = 4;} // Default results per-page.
if (!($page)){
$page = 0;} // Default page value.
$numresults = mysql_query("SELECT * FROM gallery WHERE memberid=$_SESSION[sESS_MEMBER_ID]"); // the query.
    	

$numrows = mysql_num_rows($numresults); // Number of rows returned from above query.
if ($numrows == 0){
include('nogallery.php'); // bah, modify the "Not Found" error for your needs.
exit();}

$pages = intval($numrows/$limit); // Number of results pages.

// $pages now contains int of pages, unless there is a remainder from division.

if ($numrows%$limit) {
$pages++;} // has remainder so add one page

$current = ($page/$limit) + 1; // Current page number.

if (($pages < 1) || ($pages == 0)) {
$total = 1;} // If $pages is less than one or equal to 0, total pages is 1.

else {
$total = $pages;} // Else total pages is $pages value.

$first = $page + 1; // The first result.

if (!((($page + $limit) / $limit) >= $pages) && $pages != 1) {
$last = $page + $limit;} //If not last results page, last result equals $page plus $limit.

else{
$last = $numrows;} // If last results page, last result equals total number of results.

//escape from PHP mode.
?>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf8"/>
<title>Index</title>
</head>

<body class="cloudy">
<table width="80%" border="0" align="center" cellpadding="2" cellspacing="2">
      <tr>
        <td width="40%" valign="top">
        <div align="right"><a href="myaccount.php"><img src="img/buttons/my_account.png" alt="" border="0" /></a><img src="img/spacer.png" alt="" width="10" height="1" /><a href="addgallery.php"><img src="img/buttons/upload_image.png" alt="" border="0" /></a><img src="img/spacer.png" alt="" width="10" height="1" border="0" /></div>
        <div class="content-box column-left">
	<div class="content-box-header">
			<h3>My Gallery</h3>	
	  </div><div class="content-box-content"><div><h4></h4>
                  
				<table width="100%" border="0" cellpadding="0" cellspacing="4">
      <tr>
        <td align="center" valign="top"><div><div>
        <h2>Showing 
						  <strong><?=$first?></strong>
						 - 
						<strong><?=$last?></strong>
						 of 
						<strong><?=$numrows?></strong></h2>
</div>
		  <table width="100%" border="0" cellspacing="4" cellpadding="4">
<?php

$query = "SELECT * FROM gallery WHERE memberid='$_SESSION[sESS_MEMBER_ID]' ORDER BY id DESC LIMIT $page, $limit";
$result = mysql_query($query) or die("There was a problem with the SQL query: " . mysql_error()); 
if($result && mysql_num_rows($result) > 0)
{
    $i = 0;
    $max_columns = 4;
    while($row = mysql_fetch_array($result))        
   {
       // make the variables easy to deal with
       extract($row);

       // open row if counter is zero
       if($i == 0)
          echo "<tr>";

       // reduces month output data to 3 digits
       $month=substr($month,0,3);

       // make sure we have a valid output
       if($id != "" && $id != null)
   
echo "<td><table class='sample' width='85%' border='0' cellspacing='0' cellpadding='6'><tr align='center' height='100%' /><td height='220'><table height='100%' border='0' cellspacing='0' cellpadding='4'><tr><td>";
echo "<strong><span class='medium_text'>{$row['caption']}</span></strong></td></tr>";
//echo "<br />";
echo "<tr><td align='center' valign='middle'><a href='{$row['image']}' rel='facebox'><img class='gallery' src='{$row['thumb']}' /></a></td></tr>";
//echo "<br>";
echo "<tr><td><table width='100%' border='0' cellspacing='0' cellpadding='0'><tr><td><img src='img/icons/date.png' /> {$row['date']}</td><td><a href='remove-confirm.php?ID=<?php echo $encoded ?>' rel='facebox'><img src='img/icons/delete2.png' border='0' alt='Delete these results'/></a></td></tr></table></td></tr></table></td></tr></table>";
echo "</td>";

       // increment counter - if counter = max columns, reset counter and close row
       if(++$i == $max_columns) 
       {
           echo "</tr>";
           $i=0;
       }  // end if 
   } // end while
} // end if results

// clean up table - makes your code valid!
if($i < $max_columns)
{
    for($j=$i; $j<$max_columns;$j++)
        echo "<td> </td>";
}
?>
</tr>
</table>					  
              <div align="center"><br>
                <?php									  
if ($page != 0) { // Don't show back link if current page is first page.
$back_page = $page - $limit;
echo("<a href=\"$PHP_SELF?query=$query&page=$back_page&limit=$limit\">« Previous</a>    \n");}
for ($i=1; $i <= $pages; $i++) // loop through each page and give link to it.
{
$ppage = $limit*($i - 1);
if ($ppage == $page){
echo("<b>$i</b> \n");} // If current page don't give link, just text.
else{
echo("<a href=\"$PHP_SELF?query=$query&page=$ppage&limit=$limit\">$i</a> \n");}
}
if (!((($page+$limit) / $limit) >= $pages) && $pages != 1) { // If last page don't give next link.
$next_page = $page + $limit;
echo("<a href=\"$PHP_SELF?query=$query&page=$next_page&limit=$limit\">Next »</a>\n");}
?>
              </div>
        </div></td>
      </tr>
    </table>
        </td>
      </tr>
</table>
<?php
require_once('footer.php');
?>
</body>
</html>

i have been editing code and must of changed something previously and forgot to error check this page. but i cant find what i have changed.

can someone see if i forgot something or removed something for me as i cant see where to look? many thanks.

JKG · September 15, 2011

hows about taking the query out of the url?

its probably not the best idea to put the query in the url!!

and it doesnt seem to perform any function...

remove query=$query from the url in and around lines 145

jacko_162 · September 15, 2011

its still not changing the data based on the page, when i click next now i still get first page?? =(

jacko_162 · September 15, 2011

im just checking out:

http://www.phpfreaks.com/tutorial/basic-pagination

and following it, so far i understand most of it, is it possible to echo the above tutorial into a grid layout instead of lists?

this is my code used from tutorial to provide the page and details;

<?php
session_start();

include('Includes/auth.php');
require_once('header.php');

// database connection info
$conn = @mysql_connect("$host", "$username", "$password");

if (!($conn)) // If no connect, error and exit().
{
echo("<p>Unable to connect to the database server.</p>");
exit();
}

if (!(@mysql_select_db($database))) // If can't connect to database, error and exit().
{
echo("<p>Unable to locate the $database.</p>");
exit();
}



// find out how many rows are in the table 
$sql = mysql_query("SELECT COUNT(*) FROM `gallery` WHERE memberid=$_SESSION[sESS_MEMBER_ID]");

$r = mysql_fetch_row($sql);
$numrows = $r[0];

// number of rows to show per page
$rowsperpage = 2;
// 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;

// get the info from the db 
$sql = "SELECT id, thumb FROM gallery LIMIT $offset, $rowsperpage";
$result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR);

// while there are rows to be fetched...
while ($list = mysql_fetch_assoc($result)) {
   // echo data
   echo $list['id'] . " : " . $list['thumb'] . "<br />";
} // end while

/******  build the pagination links ******/
// range of num links to show
$range = 3;

// if not on page 1, don't show back links
if ($currentpage > 1) {
   // show << link to go back to page 1
   echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=1'><<</a> ";
   // get previous page num
   $prevpage = $currentpage - 1;
   // show < link to go back to 1 page
   echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$prevpage'><</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=$nextpage'>></a> ";
   // echo forward link for lastpage
   echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$totalpages'>>></a> ";
} // end if
/****** end build pagination links ******/
?>

jacko_162 · September 15, 2011

struggling to adapt a loop for the <td> to make the grid here =(

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