Limiting number of items to display per page - php

Question

I have files like (for an instance ) being shown as shown in
http://lawcommission.gov.np/site/NepalLawCommissionFinal/NepalLawCommissionFinal/document.php?cat=112&sub_cat=10008
The document.php has following html to display the files:
<section class="three-fourth">
<div class="sort-by">
<h3>Sort by</h3>
<ul class="sort">
<li>Date ascendingdescending</li>
<li>Name ascendingdescending</li>
<li>Category ascendingdescending</li>
</ul>
<ul class="view-type">
<li class="grid-view">grid view</li>
<li class="list-view">list view</li>
</ul>
</div>
<div class="deals clearfix">
<!--deal-->
<?php
$id = $_GET['cat'];
$base_obj = new Base();
$lst = $base_obj->list_doc($id);
$lst->execute();
foreach ($lst as $rec)
{
$sub_head = $rec['Head_Id'];
$get_sub = $base_obj->list_by_id('Head_Id', $sub_head, 'tbl_heading');
$get_sub->execute();
foreach ($get_sub as $h)
{
$heading = $h['Head_Name'];
}
?>
<article class="one-fourth">
<figure><span style="float:left"><img src="images/uploads/london1.jpg" alt="" style="width:100px" /></span><span style="float:left"></span></figure>
<div class="details">
<h1><?=$rec['Doc_Name'];?></h1>
<span class="address"><?=$heading;?></span>
<span class="price">Added On <em><?=substr($rec['Uploaded_Date_Time'],0,10);?></em> </span>
Download
</div>
</article>
<!--//deal-->
<?php
} ?>
<!--bottom navigation-->
<div class="bottom-nav">
<!--back up button-->
Back up
<!--//back up button-->
<!--pager-->
<div class="pager">
<span>First page</span>
<span><</span>
<span class="current">1</span>
<span>2</span>
<span>3</span>
<span>4</span>
<span>5</span>
<span>6</span>
<span>7</span>
<span>8</span>
<span>></span>
<span>Last page</span>
</div>
<!--//pager-->
</div>
<!--//bottom navigation-->
</div>
</section>
<!--//three-fourth content-->
</div>
<!--//main content-->
</div>
<div class="wrap clearfix">
<!--info boxes--><!--//info boxes-->
</div>
Can you guys please suggest a way to show only limited no. of pdf files in one page?

Answer 1

here is how you need to change your function:
public function list_doc($cat, $page=0) {
$itemsPerPage = 20;
$cat = intval($cat, 10);
$start = intval($page, 10) * $itemsPerPage;
if ($start < 0) $start = 0;
$qry = $this->dbobj->db1->prepare("SELECT SQL_CALC_FOUND_ROWS *
FROM tbl_documents, tbl_cat_head_doc
WHERE tbl_cat_head_doc.Cat_Id = " . $cat ." AND
tbl_cat_head_doc.Doc_Id = tbl_documents.Doc_Id AND
tbl_documents.Status = 'a'
limit " . $start . "," . $itemsPerPage);
return $qry;
}
and in main page call function like this:
$lst = $base_obj->list_doc($id, $_GET['page']);
to prevent next question: read about SQL_CALC_FOUND_ROWS and FOUND_ROWS()