Pagination in PHP with MySQL<\/a><\/span><\/p>\nCreate Database Table<\/h2>\n
To store the post’s data a table is required in the database. The following SQL creates a posts<\/code> table with some basic fields in the MySQL database.<\/p>\nCREATE<\/span> TABLE<\/span> `posts`<\/span> (\r\n `id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span> AUTO_INCREMENT,\r\n `title`<\/span> varchar<\/span>(255<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `created`<\/span> datetime NOT<\/span> NULL<\/span>,\r\n `modified`<\/span> datetime NOT<\/span> NULL<\/span>,\r\n `status`<\/span> tinyint(1<\/span>) NOT<\/span> NULL<\/span> DEFAULT<\/span> '1'<\/span> COMMENT<\/span> '1=Active | 0=Inactive'<\/span>,\r\n PRIMARY KEY<\/span> (`id`<\/span>)\r\n) ENGINE<\/span>=InnoDB<\/span> DEFAULT<\/span> CHARSET<\/span>=utf8 COLLATE<\/span>=utf8_unicode_ci;<\/pre>\nController (Posts.php)<\/h2>\n
The Posts controller generates the pagination links and loads the data list view.<\/p>\n
\n- __construct()<\/b> –\n
\n- Load the Pagination library.<\/li>\n
- Load the Post model.<\/li>\n
- Define the limit of records to display per page.<\/li>\n<\/ul>\n<\/li>\n
- index()<\/b> –\n
\n- Get the total record count using
getRows()<\/code> method of Post model.<\/li>\n- Specify the configuration in
$config<\/code> array for pagination.<\/li>\n- Initialize the Pagination class with the configuration options using
initialize()<\/code> method.<\/li>\n- Define offset by the page URI segment.<\/li>\n
- Fetch records from the database using
getRows()<\/code> method of Post model.<\/li>\n- Pass the posts data and load the list view.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
<?php defined<\/span>(<\/span>'BASEPATH'<\/span>) OR exit(<\/span>'No direct script access allowed'<\/span>);
class <\/span>Posts <\/span>extends <\/span>CI_Controller <\/span>{
function <\/span>__construct<\/span>() {
<\/span>parent<\/span>::<\/span>__construct<\/span>();
<\/span>\/\/ Load pagination library
<\/span>$this<\/span>-><\/span>load<\/span>-><\/span>library<\/span>(<\/span>'pagination'<\/span>);
<\/span>\/\/ Load post model
<\/span>$this<\/span>-><\/span>load<\/span>-><\/span>model<\/span>(<\/span>'post'<\/span>);
<\/span>\/\/ Per page limit
<\/span>$this<\/span>-><\/span>perPage <\/span>= <\/span>10<\/span>;
}
public function <\/span>index<\/span>(){
<\/span>$data <\/span>= <\/span>$conditions <\/span>= array();
<\/span>$uriSegment <\/span>= <\/span>3<\/span>;
<\/span>\/\/ Get record count
<\/span>$conditions<\/span>[<\/span>'returnType'<\/span>] = <\/span>'count'<\/span>;
<\/span>$totalRec <\/span>= <\/span>$this<\/span>-><\/span>post<\/span>-><\/span>getRows<\/span>(<\/span>$conditions<\/span>);
<\/span>\/\/ Pagination configuration
<\/span>$config<\/span>[<\/span>'base_url'<\/span>] = <\/span>base_url<\/span>().<\/span>'posts\/index\/'<\/span>;
<\/span>$config<\/span>[<\/span>'uri_segment'<\/span>] = <\/span>$uriSegment<\/span>;
<\/span>$config<\/span>[<\/span>'total_rows'<\/span>] = <\/span>$totalRec<\/span>;
<\/span>$config<\/span>[<\/span>'per_page'<\/span>] = <\/span>$this<\/span>-><\/span>perPage<\/span>;
<\/span>\/\/ Initialize pagination library
<\/span>$this<\/span>-><\/span>pagination<\/span>-><\/span>initialize<\/span>(<\/span>$config<\/span>);
<\/span>\/\/ Define offset
<\/span>$page <\/span>= <\/span>$this<\/span>-><\/span>uri<\/span>-><\/span>segment<\/span>(<\/span>$uriSegment<\/span>);
<\/span>$offset <\/span>= !<\/span>$page<\/span>?<\/span>0<\/span>:<\/span>$page<\/span>;
<\/span>\/\/ Get records
<\/span>$conditions <\/span>= array(
<\/span>'start' <\/span>=> <\/span>$offset<\/span>,
<\/span>'limit' <\/span>=> <\/span>$this<\/span>-><\/span>perPage
<\/span>);
<\/span>$data<\/span>[<\/span>'posts'<\/span>] = <\/span>$this<\/span>-><\/span>post<\/span>-><\/span>getRows<\/span>(<\/span>$conditions<\/span>);
<\/span>\/\/ Load the list page view
<\/span>$this<\/span>-><\/span>load<\/span>-><\/span>view<\/span>(<\/span>'posts\/index'<\/span>, <\/span>$data<\/span>);
}
}<\/span><\/pre>\nModel (Post.php)<\/h2>\n
The Post model is used to retrieve posts data from the database.<\/p>\n
\n- getRows()<\/b> – Fetch the records from posts table based on the conditions provided in the
$params<\/code> array. Returns data as an array.<\/li>\n<\/ul>\n<?php defined<\/span>(<\/span>'BASEPATH'<\/span>) OR exit(<\/span>'No direct script access allowed'<\/span>);
class <\/span>Post <\/span>extends <\/span>CI_Model<\/span>{
function <\/span>__construct<\/span>() {
<\/span>\/\/ Set table name
<\/span>$this<\/span>-><\/span>table <\/span>= <\/span>'posts'<\/span>;
}
<\/span>\/*
* Fetch records from the database
* @param array filter data based on the passed parameters
*\/
<\/span>function <\/span>getRows<\/span>(<\/span>$params <\/span>= array()){