How to create paginated table from MySQL database? - php

Question

I'm about to start work on a new project and wanted some advice before beginning.
I have a MySQL table that I need to display on my website. The table has over 100 million lines in it. The table has 2 columns in it: domainid and domainname.
The domainid column is simply numbers starting at 1 and going up to over 100 million. In the domainname table I have a list of domains such as this:
test1
test2
test3
test4
test5
test6
Basically what I'm trying to do is this:
I want to display 1000 domains per page on my website - in a table. The table would be 4 columns and 250 lines. To start with, I'm not sure exactly how to get data from the database and actually display it in my HTML table. I know it can be done with PHP of course, just not sure how.
The second thing I need to add is some sort of pagination. It doesn't need to be pretty, I just need a way to have pages auto generated at the bottom of the list so that people can go from one page to the next and view 1000 records on each page - obviously I wouldn't want all 100 million records displayed on a single page.
So here's the problem I'm having: I'm not sure how to get the MySQL data and display it on my website quickly - I don't want it taking forever to load the pages just because the database is large. And second I really need a way to add pagination to the table.
If anyone could point me in the right direction, it would be much appreciated. I'm not sure how difficult doing this is going to be, but any assistance you can provide would be great.

Answer 1

This will give you the total number of rows
Select count(*) from yourtable
Then to display a page, do some whizzy maths like this
$rows_per_page = 1000;
$page_no = 2; // hint, start counting pages at page 0, it will make things easier
$offset = $page_no * $rows_per_page;
// 0 = offset (where to start)
// 1000 = number of rows returned
select * from yourtable limit $offset,$rows_per_page
Because you have so many rows, I would use an html select to choose which page you want to go to, or just have a next and previous button and leave it like that
To figure out how many page there are, you need some more maths
$total_rows = 100000000;
$rows_per_page = 1000;
$num_pages = $total_rows / $rows_per_page;

Answer 2

USE THIS CODE :
Create pages config,paginate,index in php.
Here Paginate page creates design for format(prev and next button to scroll page).
Config create connection with database.
index page firstly define the variable for create number of result per page, page number , total result etc
index page(design) defines the how page show ,which can be modify by you according to you priority to show page design.
CONFIG.PHP
$mysql_hostname = "host";
$mysql_user = "usr";
$mysql_password = "pass";
$mysql_database = "db";
$bd = mysql_connect($mysql_hostname, $mysql_user, $mysql_password) or die("Opps some thing went wrong");
mysql_select_db($mysql_database, $bd) or die("Error on database connection");
PAGINATE.PHP
function paginate($reload, $page, $tpages) {
$adjacents = 2;
$prevlabel = "‹ Prev";
$nextlabel = "Next ›";
$out = "";
// previous
if ($page == 1) {
$out.= "<span>".$prevlabel."</span>\n";
} elseif ($page == 2) {
$out.="<li>".$prevlabel."\n</li>";
} else {
$out.="<li>".$prevlabel."\n</li>";
}
$pmin=($page>$adjacents)?($page - $adjacents):1;
$pmax=($page<($tpages - $adjacents))?($page + $adjacents):$tpages;
for ($i = $pmin; $i <= $pmax; $i++) {
if ($i == $page) {
$out.= "<li class=\"active\"><a href=''>".$i."</a></li>\n";
} elseif ($i == 1) {
$out.= "<li>".$i."\n</li>";
} else {
$out.= "<li>".$i. "\n</li>";
}
}
if ($page<($tpages - $adjacents)) {
$out.= "<a style='font-size:11px' href=\"" . $reload."&page=".$tpages."\">" .$tpages."</a>\n";
}
// next
if ($page < $tpages) {
$out.= "<li>".$nextlabel."\n</li>";
} else {
$out.= "<span style='font-size:11px'>".$nextlabel."</span>\n";
}
$out.= "";
return $out;
}
index.php
<?php
include('config.php'); //include of db config file
include ('paginate.php'); //include of paginat page
$per_page = 1000; // number of results to show per page
$result = mysql_query("SELECT * FROM YOURTABLE");
$total_results = mysql_num_rows($result);
$total_pages = ceil($total_results / $per_page);//total pages we going to have
//-------------if page is setcheck------------------//
if (isset($_GET['page'])) {
$show_page = $_GET['page']; //current page
if ($show_page > 0 && $show_page <= $total_pages) {
$start = ($show_page - 1) * $per_page;
$end = $start + $per_page;
} else {
// error - show first set of results
$start = 0;
$end = $per_page;
}
} else {
// if page isn't set, show first set of results
$start = 0;
$end = $per_page;
}
// display pagination
$page = intval($_GET['page']);
$tpages=$total_pages;
if ($page <= 0)
$page = 1;
?>
// DESIGNING and displaying data(code continuing in index.php)
<?php
$reload = $_SERVER['PHP_SELF'] . "?tpages=" . $tpages;
echo '<div class="pagination"><ul>';
if ($total_pages > 1) {
echo paginate($reload, $show_page, $total_pages);
}
echo "</ul></div>";
// display data in table
echo "<table class='table table-bordered'>";
echo "<thead><tr><th>DOMAIN CODE</th> <th>DOMAIN Name</th></tr></thead>";
// loop through results of database query, displaying them in the table
for ($i = $start; $i < $end; $i++) {
// make sure that PHP doesn't try to show results that don't exist
if ($i == $total_results) {
break;
}
// echo out the contents of each row into a table
echo "<tr " . $cls . ">";
echo '<td>' . mysql_result($result, $i, 'domainid') . '</td>';
echo '<td>' . mysql_result($result, $i, 'domainname') . '</td>';
echo "</tr>";
}
// close table>
echo "</table>";
// pagination
?>