chaseman Posted February 26, 2011 Share Posted February 26, 2011 I've followed the PHP Freaks pagination tutorial which you can find here. And I also got it to work, the only problem is that the script won't work when I use the query outside of the function. Here's the function: <?php function knuffix_list ($query, $dbc) { // find out how many rows are in the table: $query_row = "SELECT COUNT(*) FROM con"; $query_run = mysqli_query ($dbc, $query_row); $row = mysqli_fetch_row($query_run); $num_rows = $row[0]; // number of rows to show per page $rows_per_page = 5; // find total pages -> ceil for rounding up $total_pages = ceil($num_rows / $rows_per_page); // get the current page or set a default if (isset($_GET['current_page']) && is_numeric($_GET['current_page'])) { // make it an INT if it isn't $current_page = (int) $_GET['current_page']; } else { // default page number $current_page = 1; } // if current page is greater than total pages then set current page to last page if ($current_page > $total_pages) { $current_page = $total_pages; } // if current page is less than first page then set current page to first page if ($current_page < 1) { $current_page = 1; } // the offset of the list, based on current page $offset = (($current_page - 1) * $rows_per_page); echo "test " . $query; // SCRIPT ONLY WORKS IF I INSERT QUERY HERE $query = "SELECT * FROM con, user WHERE con.user_id = user.user_id ORDER BY contributed_date DESC LIMIT $offset, $rows_per_page"; $data = mysqli_query ($dbc, $query) or die (mysqli_error ($dbc)); // Loop through the array of data while ($row = mysqli_fetch_array ($data)) { global $array; // Variables for the table $con_id = $row['con_id']; $likes_count = $row['likes']; $dislikes_count = $row['dislikes']; $dbuser_name = $row['nickname']; $dbuser_avatar = $row['avatar']; $user_id = $row['user_id']; // The TABLE echo "<table padding='0' margin='0' class='knuffixTable'>"; echo "<tr><td width='65px' height='64px' class='avatar_bg' rowspan='2' colpan='2'><img src='avatar/$dbuser_avatar' alt='avatar' /></td>"; echo "<td class='knuffix_username'><strong><a href='profile.php?user=$dbuser_name' title='Profile of $dbuser_name'>" . $dbuser_name . "</a> ___ " . $user_id . "____ <form action='' method='POST'><button type='submit' name='favorite' value='fav'>Favorite</button></form>"; echo "</strong><br />" . $row['category'] . " | " . date('M d, Y', strtotime($row['contributed_date'])) . "</td></tr><tr><td>"; echo "<form action='' method='post'> <button class='LikeButton' type='submit' name='likes' value='+1'>Likes</button> <button class='DislikeButton' type='submit' name='dislikes' value='-1'>Dislikes</button> <input type='hidden' name='hidden_con_id' value='" . $con_id . "' /> </form></td><td class='votes'>Y[" . $likes_count . "] | N[" . $dislikes_count . "]</td></tr>"; echo "<tr><td class='knuffix_name' colspan='3'><strong>" . htmlentities($row['name']) . "</strong><br /></td></tr>"; echo "<tr><td colspan='2' class='knuffix_contribution'><pre>" . $row['contribution'] . "</pre><br /></td></tr>"; echo "</table>"; // POST BUTTONS inside the table $likes = $_POST['likes']; $dislikes = $_POST['dislikes']; $con_id = $_POST['hidden_con_id']; $favorite = $_POST['favorite']; $array = array ($likes, $dislikes, $con_id, $user_id, $favorite); } /********* build the pagination links *********/ // BACKWARD // if not on page 1, show back links and show << link to go back to the very first page if ($current_page > 1) { echo " <a href='{$_SERVER['PHP_SELF']}?current_page=1'><<</a> "; // get previous page number and show < link to go to previous $prev_page = $current_page - 1; echo " <a href='{$_SERVER['PHP_SELF']}?current_page=$prev_page'><</a> "; } // CURRENT // range of number of links to show $range = 3; // loop to show links in the range of pages around current page for ($x = ($current_page - $range); $x < (($current_page + $range) + 1); $x++) { // if it's a valid page number... if (($x > 0) && ($x <= $total_pages)) { // if we're on current page if ($x == $current_page) { // highlight it but don't make a link out of it echo "[<b>$x</b>]"; // if it's not the current page then make it a link } else { echo "<a href='{$_SERVER['PHP_SELF']}?current_page=$x'>$x</a>"; } } } // FORWARD // if not on the last page, show forward and last page links if ($current_page != $total_pages) { // get next page $next_page = $current_page + 1; // echo forward link for next page echo " <a href='{$_SERVER['PHP_SELF']}?current_page=$next_page'>></a> "; // echo forward link for last page echo " <a href='{$_SERVER['PHP_SELF']}?current_page=$total_pages'>>></a> "; } /***** end building pagination links ****/ mysqli_close($dbc); } ?> As you can see above, the script will only work if I put the query right below the $offset variable and above the $data variable. I put the test echo above the query to see how the query looks like when I induce the query from the outside through the function parenthesis into the function, and this is what I get printed out: test SELECT * FROM con, user WHERE con.user_id = user.user_id ORDER BY contributed_date DESC LIMIT , Obviously the $offset and the $rows_per_page variables are not set, when I induce the query from the outside into the function. So in that sense my question is: How can I induce the query from the outside into the function SO THAT the $offset and the $rows_per_page variables are set as well and NOT empty? p.s. I need the query outside of the function because I'm using a sort by category functionality. Quote Link to comment Share on other sites More sharing options...
chaseman Posted February 26, 2011 Author Share Posted February 26, 2011 I solved this problem, by splitting it up into parts, likes this: if (($select_category == 'All') || (!isset($select_category)) && (!isset($most_liked))) { pagination_start ($dbc); $query = "SELECT * FROM con, user WHERE con.user_id = user.user_id ORDER BY contributed_date DESC LIMIT $pag_array[0], $pag_array[1]"; knuffix_list ($query, $dbc); pagination_end ($pag_array); pagination_start, above the query, and pagination_end below. 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.