Example of paging class that passed the test in codeigniter_PHP tutorial

Universal paging class (tested with Codeigniter)

page_list.php

Copy code The code is as follows:

/**
* 分页类
*/
class Page_list {

/**
* 总数据
* @var int
*/
private $total;
/**
* 每页显示数据
* @var int
*/
private $size;
/**
* 当前页数
* @var int
*/
private $page;
/**
* 页数列表左右页数
* @var int
*/
private $len;

/**
* 总页数
* @var int
*/
private $page_total;
/**
* 页码列表
* @var array
*/
private $page_list;

/**
* 基准地址
* @var string
*/
private $base_url;
/**
* 替换标志
* @var string
*/
private $place;
/**
* 分页样式
* @var string
*/
private $style;

/**
* 构造函数
*
* @param array $config 配置数组
*/
public function __construct($config = array()){
// 初始化默认值
$this->total = 0;
        $this->size = 20;
        $this->page = 1;
        $this->len = 4;
        $this->page_total = 1;
        $this->page_list = array();
        $this->base_url = '?page=-page-';
        $this->place = '-page-';
        $this->style = $this->get_default_style();
        $this->initialize($config);
    }

    /**
     * 初始化分页
     *
     * @param array $config 配置数组
     */
    public function initialize($config = array()){
        // 取得配置值
        if(is_array($config)){
            if(array_key_exists('total', $config)) $this->total = @intval($config['total']);
            if(array_key_exists('size', $config)) $this->size = @intval($config['size']);
            if(array_key_exists('page', $config)) $this->page = @intval($config['page']);
            if(array_key_exists('len', $config)) $this->len = @intval($config['len']);
            if(array_key_exists('base_url', $config)) $this->base_url = @strval($config['base_url']);
            if(array_key_exists('place', $config)) $this->place = @strval($config['place']);
            if(array_key_exists('style', $config)) $this->style = @strval($config['style']);
        }
        // 修正值
        if($this->total<0) $this->total = 0;
        if($this->size<=0) $this->size = 20;
        if($this->page<=0) $this->page = 1;
        if($this->len<=0) $this->len = 4;
        // 执行分页算法
        $this->page_total = ceil($this->total/$this->size);
        if($this->page_total<=0) $this->page_total = 1;
        if($this->page>$this->page_total) $this->page = $this->page_total;
        if($this->page-$this->len>=1){
            for($i=$this->len; $i>0; $i--){
                $this->page_list[] = $this->page - $i;
            }
        }else{
            for($i=1; $i<$this->page; $i++){
                $this->page_list[] = $i;
            }
        }
        $this->page_list[] = $this->page;
        if($this->page+$this->len<=$this->page_total){
            for($i=1; $i<=$this->len; $i++){
                $this->page_list[] = $this->page + $i;
            }
        }else{
            for($i=$this->page+1; $i<=$this->page_total; $i++){
                $this->page_list[] = $i;
            }
        }
    }

    /**
     * 默认分页样式
     *
     * @return string
     */
    public function get_default_style(){
        $style = '';
        return $style;
    }

    /**
     * 是否是第一页
     *
     * @return bool
     */
    public function is_first_page(){
        return $this->page == 1;
    }

    /**
     * 获取第一页页码
     *
     * @return int
     */
    public function get_first_page(){
        return 1;
    }

    /**
     * 是否是最后一页
     *
     * @return bool
     */
    public function is_last_page(){
        return $this->page == $this->page_total;
    }

    /**
     * 获取最后一页页码
     *
     * @return int
     */
    public function get_last_page(){
        return $this->page_total;
    }

    /**
     * 是否存在上一页
     *
     * @return bool
     */
    public function has_prev_page(){
        return $this->page > 1;
    }

    /**
     * 是否存在下一页
     *
     * @return bool
     */
    public function has_next_page(){
        return $this->page < $this->page_total;
    }

    /**
     * 获取上一页页码
     *
     * @return int
     */
    public function get_prev_page(){
        return $this->has_prev_page() ? $this->page - 1 : $this->page;
    }

    /**
     * 获取下一页页码
     *
     * @return int
     */
    public function get_next_page(){
        return $this->has_next_page() ? $this->page + 1 : $this->page;
    }

    /**
     * 获取当前页页码
     *
     * @return int
     */
    public function get_curr_page(){
        return $this->page;
    }

    /**
* Get the total number of data
*
* @return int
*/
    public function get_total(){
        return $this->total;
    }

    /**
* Get the number of data displayed on each page
*
* @return int
*/
    public function get_size(){
        return $this->size;
    }

    /**
* Get the total number of pages
*
* @return int
*/
    public function get_total_page(){
        return $this->page_total;
    }

    /**
* Construct and return the paging code
*
* @param string $base_url base address
* @param string $place replacement flag
* @param string $style paging style
* @return string paging HTML code
*/
    public function display($base_url = '', $place = '', $style = ''){
        if($base_url==='') $base_url = $this->base_url;
        if($place==='') $place = $this->place;
        if($style==='') $style = $this->style;
        $str = $style.'

';
        if( ! $this->is_first_page()){
            $str .= '首页';
        }
        if($this->has_prev_page()){
            $str .= '上一页';
        }
        foreach($this->page_list as $v){
            if($v==$this->page){
                $str .= '' . $v . '';
            }else{
                $str .= ''.$v.'';
            }
        }
        if($this->has_next_page()){
            $str .= '下一页';
        }
        if( ! $this->is_last_page()){
            $str .= '尾页';
        }
        $str .= '

';
        return $str;
    }

}
?>

/application/view/pagelist.php

复制代码 代码如下:

    class Pagelist extends CI_Controller {

        public function page(){
            $this->load->helper('url');
            $page = $this->input->get('page');
            $page = @intval($page);
            if($page<=0) $page = 1;
            $this->load->library('page_list',array('total'=>10000,'size'=>16,'page'=>$page));
            $pl = $this->page_list->display(site_url('pagelist/page/page/-page-'));
            $this->load->view('pagelist', array('pl' => $pl));
        }

    }
?>

/application/view/pagelist.php

复制代码 代码如下:

   
   

http://www.bkjia.com/PHPjc/755840.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/755840.htmlTechArticle通用分页类（以Codeigniter测试） page_list.php 复制代码 代码如下: ?php if( ! defined('BASEPATH')) die('No Access'); /***Paging class*/ class Page_list { /** * 总数...