What's wrong with my pagination script (below)? It displays navigation links like this: 1 2 3 > >> Even if no results are returned from the database, the pagination links are still there: 1 2 3 > >> If 2 or 3 are clicked, they go to blank pages. I've played with $range but the problem remains. When I change $range to 0, for example, the pagination links display like the following, even if no results are returned: 1 > >> If ">" or ">>" are clicked, they lead to blank pages. Anyone know how I can fix this? If no results are returned, I don't want links to blank pages. Here's the full script. However, all you need is the bottom part. <?php // database connection info $conn = mysql_connect('localhost','root') or trigger_error("SQL", E_USER_ERROR); $db = mysql_select_db('ctyi', $conn) or trigger_error("SQL", E_USER_ERROR); // find out how many rows are in the table $sql = "SELECT COUNT(*) FROM tcoupon"; $result = mysql_query($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; // get the info from the db $sql = "SELECT * FROM wherever LIMIT $offset, $rowsperpage"; $result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR); if(mysql_num_rows($result) < 1) { echo "<p>No results.</p>"; } else { while($row = mysql_fetch_assoc($result)) { // echo data echo "Results"; } // end while } // end else /****** build the pagination links ******/ // if not on page 1, 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 // range of num links to show $range = 3; // loop to show links to range of pages around current page for ($x = (($currentpage - $range) - 1); $x < (($currentpage + $range) + 1); $x++) { // if it's a valid page number... if (($x > 0) && ($x <= $totalpages)) { // if we're on current page... if ($x == $currentpage) { // 'highlight' it but don't make a link echo " [$x] "; // 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=$totalpages'>>></a> "; } // end if /****** end build pagination links ******/ ?> PHP:
Do: Echo mysql_num_rows($result); So you can see the value of it when there are no results found. Then compare it to either show or not show the pagination.