Hello
I am trying to paginate my products by using php and sql server 2008. I followed this video tutorial to help me understand how pagination works:
http://www.youtube.com/watch?feature=player_embedded&v=K8xYGnEOXYc
The only problem is that this tutorial is about MySQL and not SQL Server 2008
Here is my code that I have written so far:
$tsql = "SELECT *
FROM products INNER JOIN product_catalogue
ON products.catalogueID = product_catalogue.catalogueID
WHERE category1 = '1'
ORDER BY productID ASC";
$stmt = sqlsrv_query($conn,$tsql);
$nr = sqlsrv_num_rows($stmt); // Get total of Num rows from the database query
if (isset($_GET['pn'])) { // Get pn from URL vars if it is present
$pn = preg_replace('#[^0-9]#i', '', $_GET['pn']); // filter everything but numbers for security(new)
} else { // If the pn URL variable is not present force it to be value of page number 1
$pn = 1;
}
//This is where we set how many database items to show on each page
$itemsPerPage = 10;
// Get the value of the last page in the pagination result set
$lastPage = ceil($nr / $itemsPerPage);
// Be sure URL variable $pn(page number) is no lower than page 1 and no higher than $lastpage
if ($pn < 1) { // If it is less than 1
$pn = 1; // force it to be 1
} else if ($pn > $lastPage) { // if it is greater than $lastpage
$pn = $lastPage; // force it to be $lastpage's value
}
// This creates the numbers to click in between the next and back buttons
// This section is explained well in the video that accompanies this script
$centerPages = "";
$sub1 = $pn - 1;
$sub2 = $pn - 2;
$add1 = $pn + 1;
$add2 = $pn + 2;
if ($pn == 1) {
$centerPages .= ' <span class="pagNumActive">' . $pn . '</span> ';
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add1 . '">' . $add1 . '</a> ';
} else if ($pn == $lastPage) {
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub1 . '">' . $sub1 . '</a> ';
$centerPages .= ' <span class="pagNumActive">' . $pn . '</span> ';
} else if ($pn > 2 && $pn < ($lastPage - 1)) {
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub2 . '">' . $sub2 . '</a> ';
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub1 . '">' . $sub1 . '</a> ';
$centerPages .= ' <span class="pagNumActive">' . $pn . '</span> ';
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add1 . '">' . $add1 . '</a> ';
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add2 . '">' . $add2 . '</a> ';
} else if ($pn > 1 && $pn < $lastPage) {
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub1 . '">' . $sub1 . '</a> ';
$centerPages .= ' <span class="pagNumActive">' . $pn . '</span> ';
$centerPages .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add1 . '">' . $add1 . '</a> ';
}
// This line sets the "LIMIT" range... the 2 values we place to choose a range of rows from database in our query
$limit = 'LIMIT ' .($pn - 1) * $itemsPerPage .',' .$itemsPerPage;
// Now we are going to run the same query as above but this time add $limit onto the end of the SQL syntax
// $sql2 is what we will use to fuel our while loop statement below
$tsql2 = "SELECT *
FROM products INNER JOIN product_catalogue
ON products.catalogueID = product_catalogue.catalogueID
WHERE category1 = '1'
ORDER BY productID ASC $limit";
$stmt2 = sqlsrv_query($conn,$tsql2);
$paginationDisplay = ""; // Initialize the pagination output variable
// This code runs only if the last page variable is not equal to 1, if it is only 1 page we require no paginated links to display
if ($lastPage != "1"){
// This shows the user what page they are on, and the total number of pages
$paginationDisplay .= 'Page <strong>' . $pn . '</strong> of ' . $lastPage. ' ';
// If we are not on page 1 we can place the Back button
if ($pn != 1) {
$previous = $pn - 1;
$paginationDisplay .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $previous . '"> Back</a> ';
}
// Lay in the clickable numbers display here between the Back and Next links
$paginationDisplay .= '<span class="paginationNumbers">' . $centerPages . '</span>';
// If we are not on the very last page we can place the Next button
if ($pn != $lastPage) {
$nextPage = $pn + 1;
$paginationDisplay .= ' <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $nextPage . '"> Next</a> ';
}
}
// Build the Output Section Here
$outputList = '';
while($row = sqlsrv_fetch_array($stmt2)){
$id = $row["productID"];
$product_name = $row["product_name"];
$product_price = $row["product_price"];
$outputList .= '<h1>' . $product_name . '</h1><h2>' . $product_price . ' </h2><hr />';
}
?>As you can see right above my second query I set the LIMIT range and try to insert the $limit variable into the SELECT query. Unfortunately that doesn't work with SQL Server.
So this is the code that I don't know how to convert to SQL Server properly:
$limit = 'LIMIT ' .($pn - 1) * $itemsPerPage .',' .$itemsPerPage;
$tsql2 = "SELECT *
FROM products INNER JOIN product_catalogue
ON products.catalogueID = product_catalogue.catalogueID
WHERE category1 = '1'
ORDER BY productID ASC $limit";
$stmt2 = sqlsrv_query($conn,$tsql2);I tried converting it into the format SQL Server should understand but as I'm very new to PHP and to programming in general, I was not able to get it to work
$limit = ($pn - 1) * $itemsPerPage;
$next_page = $itemsPerPage;
$tsql2 = "SELECT TOP $next_page productID, product_name, product_price
FROM products INNER JOIN product_catalogue
ON products.catalogueID = product_catalogue.catalogueID
WHERE category1 = '1' AND productID NOT IN(SELECT TOP $limit productID FROM products INNER JOIN product_catalogue
ON products.catalogueID = product_catalogue.catalogueID
WHERE category1 = '1'
ORDER BY productID ASC)";
$stmt2 = sqlsrv_query($conn,$tsql2);Looking forward to your reply
Thank you