Senin, 13 April 2015

PHP Data Pagination

First, create database thru console:

mysql> create database world;
and then import world_innodb.sql.zip thru phpmyadmin.
copas the script below.
index.php
<?php
    require_once 'Paginator.class.php';
    $server = "localhost";
    $username = "root";
    $password = "";
    $database = "world";
    $conn       = new mysqli( $server, $username, $password, $database );

    $limit      = ( isset( $_GET['limit'] ) ) ? $_GET['limit'] : 10;
    $page       = ( isset( $_GET['page'] ) ) ? $_GET['page'] : 1;
    $links      = ( isset( $_GET['links'] ) ) ? $_GET['links'] : 7;
    $query      = "SELECT City.Name, City.CountryCode, Country.Code, Country.Name AS Country, Country.Continent, Country.Region FROM City, Country WHERE City.CountryCode = Country.Code";

    $Paginator  = new Paginator( $conn, $query );

    $results    = $Paginator->getData( $limit, $page );
?>
<!DOCTYPE html>

    <head>
        <title>PHP Pagination</title>
        <link rel="stylesheet" href="css/bootstrap.min.css">
    </head>
    <body>
        <div class="container">
                <div class="col-md-10 col-md-offset-1">
                <h1>PHP Pagination</h1>
                <table class="table table-striped table-condensed table-bordered table-rounded">
                        <thead>
                                <tr>
                                <th>City</th>
                                <th width="20%">Country</th>
                                <th width="20%">Continent</th>
                                <th width="25%">Region</th>
                        </tr>
                        </thead>
                        <tbody>
                        <?php for( $i = 0; $i < count( $results->data ); $i++ ) : ?>
                                <tr>
                                        <td><?php echo $results->data[$i]['Name']; ?></td>
                                        <td><?php echo $results->data[$i]['Country']; ?></td>
                                        <td><?php echo $results->data[$i]['Continent']; ?></td>
                                        <td><?php echo $results->data[$i]['Region']; ?></td>
                                </tr>
                        <?php endfor; ?>                                               
                        </tbody>
                </table>
                <?php echo $Paginator->createLinks( $links, 'pagination pagination-sm' ); ?>
                </div>
        </div>
    </body>
</html>

Paginator.class.php

<?php
class Paginator {

    private $_conn;
    private $_limit;
    private $_page;
    private $_query;
    private $_total;

    public function __construct( $conn, $query ) {
        $this->_conn = $conn;
        $this->_query = $query;
        $rs= $this->_conn->query( $this->_query );
        $this->_total = $rs->num_rows;   
    }

    public function getData( $limit = 10, $page = 1 ) {
        $this->_limit   = $limit;
        $this->_page    = $page;
        if ( $this->_limit == 'all' ) {
            $query      = $this->_query;
        } else {
            $query      = $this->_query . " LIMIT " . ( ( $this->_page - 1 ) * $this->_limit ) . ", $this->_limit";
        }
        $rs             = $this->_conn->query( $query );
        while ( $row = $rs->fetch_assoc() ) {
            $results[]  = $row;
        }
        $result         = new stdClass();
        $result->page   = $this->_page;
        $result->limit  = $this->_limit;
        $result->total  = $this->_total;
        $result->data   = $results;
        return $result;
    }
    public function createLinks( $links, $list_class ) {
        if ( $this->_limit == 'all' ) {
            return '';
        }
        $last       = ceil( $this->_total / $this->_limit );
        $start      = ( ( $this->_page - $links ) > 0 ) ? $this->_page - $links : 1;
        $end        = ( ( $this->_page + $links ) < $last ) ? $this->_page + $links : $last;
        $html       = '<ul class="' . $list_class . '">';
        $class      = ( $this->_page == 1 ) ? "disabled" : "";
        $html       .= '<li class="' . $class . '"><a href="?limit=' . $this->_limit . '&page=' . ( $this->_page - 1 ) . '">&laquo;</a></li>';
        if ( $start > 1 ) {
            $html   .= '<li><a href="?limit=' . $this->_limit . '&page=1">1</a></li>';
            $html   .= '<li class="disabled"><span>...</span></li>';
        }
        for ( $i = $start ; $i <= $end; $i++ ) {
            $class  = ( $this->_page == $i ) ? "active" : "";
            $html   .= '<li class="' . $class . '"><a href="?limit=' . $this->_limit . '&page=' . $i . '">' . $i . '</a></li>';
        }
        if ( $end < $last ) {
            $html   .= '<li class="disabled"><span>...</span></li>';
            $html   .= '<li><a href="?limit=' . $this->_limit . '&page=' . $last . '">' . $last . '</a></li>';
        }
        $class      = ( $this->_page == $last ) ? "disabled" : "";
        $html       .= '<li class="' . $class . '"><a href="?limit=' . $this->_limit . '&page=' . ( $this->_page + 1 ) . '">&raquo;</a></li>';
        $html       .= '</ul>';
        return $html;
    }       
}
?>


source: http://code.tutsplus.com/tutorials/how-to-paginate-data-with-php--net-2928

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