turpentyne Posted August 28, 2010 Share Posted August 28, 2010 I've got a page with pagination set up, but I can't figure out where I went wrong with the links at the bottom. When I do a search, it generates the proper number of links, but clicking on the links goes to a page with a whole row of 20 links at the bottom and no results on the page. (my search should show 3 pages with 2 records on each page) I've looked through the tutorial here and one in a book on pagination. Not seeing what's wrong. I'd narrow this down if I knew where it was causing the problem. pagination links are at the very bottom of the code. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html><head> <meta content="text/html; charset=ISO-8859-1" http-equiv="content-type"><title>search.html</title></head> <body> <center> <p>The results of your search:</p> <br> </center> require ('databaseconnect.php'); $select = mysql_select_db($db, $con); if(!$select){ die(mysql_error()); } $display = 2; if (isset($_GET['np'])) { $num_pages = $_GET['np']; } else { $data = "SELECT COUNT(*) FROM descriptors LEFT JOIN plantae ON (descriptors.plant_id = plantae.plant_name) WHERE `leaf_shape` LIKE '%$select1%' AND `leaf_venation` LIKE '%$select3%' AND `leaf_margin` LIKE '%$select4%'"; $result = mysql_query ($data); if (!$result) { die("Oops, my query failed. The query is: <br>$data<br>The error is:<br>".mysql_error()); } $row = mysql_fetch_array($result, MYSQL_NUM); // row 41 $num_records = $row[0]; if ($num_records > $display) { $num_pages = ceil ($num_records/$display); } else { $num_pages = 1; } } if (isset($_GET['s'])) { $start = $_GET['s']; } else { $start = 0; } if(isset($_POST[submitted])) { // Now collect all info into $item variable $shape = $_POST['select1']; $color = $_POST['select2']; $vein = $_POST['select3']; $margin = $_POST['select4']; // This will take all info from database where row tutorial is $item and collects it into $data variable row 55 $data = mysql_query("SELECT `descriptors`.* ,`plantae`.* FROM `descriptors` LEFT JOIN `plantae` ON (`descriptors`.`plant_id` = `plantae`.`plant_name`) WHERE `leaf_shape` LIKE '%$select1%' AND `leaf_venation` LIKE '%$select3%' AND `leaf_margin` LIKE '%$select4%' ORDER BY `plantae`.`scientific_name` ASC LIMIT $start, $display"); //chs added this in... row 72 echo '<table align="center" cellspacing="0" cellpading-"5"> <tr> <td align="left"><b></b></td> <td align="left"><b></b></td> <td align="left"><b>Leaf margin</b></td> <td align="left"><b>Leaf venation</b></td> </tr> '; // This creates a loop which will repeat itself until there are no more rows to select from the database. We getting the field names and storing them in the $row variable. This makes it easier to echo each field. while($row = mysql_fetch_array($data)){ echo '<tr> <td align="left"> <a href="link.php">View plant</a> </td> <td align="left"> <a href="link.php">unknown link</a> </td> <td align="left">' . $row['scientific_name'] . '</td> <td align="left">' . $row['common_name'] . '</td> <td align="left">' . $row['leaf_shape'] . '</td> </tr>'; } echo '</table>'; } if ($num_pages > 1) { echo '<br /><p>'; $current_page = ($start/$display) + 1; // row 100 if ($current_page != 1) { echo '<a href="leafsearch2a.php?s=' . ($start - $display) . '&np=;' . $num_pages . '">Previous</a> '; } for ($i = 1; $i <= $num_pages; $i++) { if($i != $current_page) { echo '<a href="leafsearch2a.php?s=' . (($display * ($i - 1))) . '$np=' . $num_pages . '">' . $i . '</a>'; } else { echo $i . ' '; } } if ($current_page != $num_pages) { echo '<a href="leafsearch2a.php?s=' . ($start + $display) . '$np=' . " " . $num_pages . '"> Next</a>'; } } ?> </body></html> Quote Link to comment Share on other sites More sharing options...
Rifts Posted August 28, 2010 Share Posted August 28, 2010 Hey I know this isnt an answer to your question but this may help http://php.about.com/od/phpwithmysql/ss/php_pagination.htm also you might get an answer quick if you use tags instead of Quote Link to comment Share on other sites More sharing options...
turpentyne Posted September 4, 2010 Author Share Posted September 4, 2010 I'm still completely lost on this. I've looked at tutorials. I've read books. I'm missing something and I don't know what. The best guess I can come up with is that the _post variables that were searched for do not pass through correctely (or at all?) when I click on the pagination links on the bottom. I've had the same thing happen on a couple different scripts. please please, can somebody help? I'm struggling to understand what I'm doing here. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.