Get all records order by date and time and with limits

Question

In my website there's a page to display all the records in a table. So, I have a simple pagination mechanism.

For the pagination, I'm querying the table with limits according to the page.

$query = "SELECT * ";
$query .= "FROM records ";
$query .= "LIMIT $start, $limit;";

This works perfectly for me.

However, the order I need to get records is not the order of the table. It's should be according to the date and time of the records. (There're columns for date and time).

So, when I changed the query to this, it always gives me same records in every page.

$query = "SELECT * ";
$query .= "FROM records ";
$query .= "WHERE published = '1' ORDER BY date DESC, time DESC ";
$query .= "LIMIT $start, $limit;";

What I need is, all the records should order by date and time and they should also respect to $start and $limit variables.

It's basically the actual way pagination works. How to implement it with this..

Answer 1

Assuming your $start and $limit are each numbers, like $start = 1, $limit = 50, after each page, increment both $start and $limit by $limit, so $start += $limit , and $limit += $limit . This should have the effect of moving $start and $limit to the next page worth of records.

Answer 2

The standard pattern for this is something like

$itemsPerPage = 10;
$page = (int) $page; // get $page from route or $_GET['page'] or wherever
$pageNum = (!empty($page)) ? (int) $page - 1 : 0;
$start = $pageNum * $itemsPerPage;

$query = "SELECT * ";
$query .= "FROM records ";
$query .= "WHERE published = '1' ORDER BY date DESC, time DESC ";
$query .= "LIMIT $start, $itemsPerPage;";

Remember its start plus number of items, not start to end.