PHP分页类

php

浏览数:244

2019-1-8

AD:资源代下载服务
per_page = intval($per_page)<1 ? $this->per_page : intval($per_page);//每页显示条数小于1时 默认为10
        $this->page_num = ceil( $totle / $this->per_page );
        $this->page     = isset($_GET[PAGE_NAME]) ? ( (intval($_GET[PAGE_NAME])>0) ? intval($_GET[PAGE_NAME]):1) : 1;//当前页码小于1时默认为第一页
        $this->page     = $this->page > $this->page_num ?  $this->page_num : $this->page;//当前页码超过最大页码时默认为最后一页

        $this->html     = '';
    }

    /**
     * 私有属性赋值时的错误处理
     */ 
    public function __set( $aa ,$bb){}

    /**
     * 配置类的私有属性  
     * $ary  array  键值对,键为该类的私有属性
     */
    public function set( $ary = array(  'display_str_flag'=>false,
                                        'prev_label'=>'>>',
                                        'next_label'=>'>>',
                                        'first_label'=>'>>',
                                        'last_label'=>'>>',
                                        'adjacent_num'=>5))
    {
        foreach( $ary as $key=>$value )
        {
            $this->{$key} = $value;
        }
    }

    /**
     * 返回当前URL
     */
    private function getURL()
    {
        $url = $_SERVER["REQUEST_URI"].(strpos($_SERVER["REQUEST_URI"],'?')?'':"?");
        $parse=parse_url($url);
        if(isset($parse['query']))
        {
            parse_str($parse['query'],$params);
            unset($params[PAGE_NAME]);
            $url = $parse['path'].'?'.http_build_query($params);
        }
        $url .= strpos($url, '?') ? (strpos($url, '=')?'&':'') : '' ;
        return $url;
    }

    /**
     * 首页
     */
    private function first_page()
    {
        if( $this->page == 1 )
        {
            $this->html .= '' . $this->first_label . ''.CR;
        }
        else 
        {
            $this->html .= '' . $this->first_label . ''.CR;
        }
    }

    /**
     * 尾页
     */
    private function last_page()
    {
        if( $this->page == $this->page_num )
        {
            $this->html .= '' . $this->last_label . ''.CR;
        }
        else 
        {
            $this->html .= '' . $this->last_label . ''.CR;
        }
    }

    /**
     * 上一页
     */
    private function prev_page()
    {
        if( $this->page == 1 )
        {
            $this->html .= '' . $this->prev_label . ''.CR;
        }
        else 
        {
            $this->html .= '' . $this->prev_label . ''.CR;
        }
    }

    /**
     * 下一页
     */
    private function next_page()
    { 
        if( $this->page < $this->page_num) 
        {
            $this->html .= '' . $this->next_label . ''.CR;
        }
        else 
        {
            $this->html .= '' . $this->next_label . ''.CR;
        }
    }

    /**
     * 第一块  第一个省略号前的那块
     */
    private function first_block()
    {
        if( $this->page > ( $this->adjacent_num+1 ) ) 
        {
            $this->html.= '1'.CR;
        }
        if( $this->page > ( $this->adjacent_num+2 ) ) 
        {
            $this->html.= '...'.CR;
        }
    }

    /**
     * 第二块  两个省略号中间的那块
     */
    private function middle_block()
    {
        $page_min = ( $this->page > $this->adjacent_num ) ? ( $this->page - $this->adjacent_num ) : 1;
        $page_max = ( $this->page < ($this->page_num-$this->adjacent_num)) ? ($this->page+$this->adjacent_num) : $this->page_num ;
        for( $i=$page_min; $i<=$page_max; $i++)
        {
            if( $i == $this->page ) 
            {
                $this->html .= '' . $i . ''.CR;
            }
            else
            {
                $this->html .= '' . $i . ''.CR;
            }
        }
    }

    /**
     * 最后一块  最后一个省略号后的的那块
     */
    private function last_block()
    {
        if( $this->page < ($this->page_num - $this->adjacent_num - 1)) 
        {
            $this->html .= '...'.CR;
        }
        if( $this->page < ($this->page_num-$this->adjacent_num )) 
        {
            $this->html .= '' . $this->page_num . ''.CR;
        }
    }

    /**
     * 显示分页
     * 
     * $out_flag bool 输出和反回分页html的标志  true:直接输出   false:返回分页的html
     * 
     */
    public function display( $out_flag = false ) 
    {       
        $this->html = '
'.CR; if( $this->display_str_flag === true ) {//首页和尾页用字符串显示 $this->first_page(); //显示首页 $this->prev_page(); //显示上一页 $this->middle_block(); //显示中间块 $this->next_page(); //显示下一页 $this->last_page(); //显示最后一页 } else {//首页和尾页用数字显示 $this->prev_page(); //显示上一页 $this->first_block(); //显示第一块 $this->middle_block(); //显示中间块 $this->last_block(); //显示最后一块 $this->next_page(); //显示下一页 } $this->html .= '
'; if($out_flag === false) {//返回分页 html码 return $this->html; } else {//输出分页 html码 echo $html; } } } /*************demo **************/ $page = new page(3,55); $page->set( $ary = array( 'display_str_flag'=>false, 'prev_label'=>'上', 'next_label'=>'下一页', 'last_label'=>'末',)); echo $page->display(); /*************demo **************/ ?> 分页类&nbsp;~&nbsp;6KB&nbsp;&nbsp;&nbsp;&nbsp;下载(39) per_page = intval($per_page)<1 ? $this->per_page : intval($per_page);//每页显示条数小于1时 默认为10 $this->page_num = ceil( $totle / $this->per_page ); $this->page = isset($_GET[PAGE_NAME]) ? ( (intval($_GET[PAGE_NAME])>0) ? intval($_GET[PAGE_NAME]):1) : 1;//当前页码小于1时默认为第一页 $this->page = $this->page > $this->page_num ? $this->page_num : $this->page;//当前页码超过最大页码时默认为最后一页 $this->html = ''; } /** * 私有属性赋值时的错误处理 */ public function __set( $aa ,$bb){} /** * 配置类的私有属性 * $ary array 键值对,键为该类的私有属性 */ public function set( $ary = array( 'display_str_flag'=>false, 'prev_label'=>'>>', 'next_label'=>'>>', 'first_label'=>'>>', 'last_label'=>'>>', 'adjacent_num'=>5)) { foreach( $ary as $key=>$value ) { $this->{$key} = $value; } } /** * 返回当前URL */ private function getURL() { $url = $_SERVER["REQUEST_URI"].(strpos($_SERVER["REQUEST_URI"],'?')?'':"?"); $parse=parse_url($url); if(isset($parse['query'])) { parse_str($parse['query'],$params); unset($params[PAGE_NAME]); $url = $parse['path'].'?'.http_build_query($params); } $url .= strpos($url, '?') ? (strpos($url, '=')?'&':'') : '' ; return $url; } /** * 首页 */ private function first_page() { if( $this->page == 1 ) { $this->html .= '' . $this->first_label . ''.CR; } else { $this->html .= '' . $this->first_label . ''.CR; } } /** * 尾页 */ private function last_page() { if( $this->page == $this->page_num ) { $this->html .= '' . $this->last_label . ''.CR; } else { $this->html .= '' . $this->last_label . ''.CR; } } /** * 上一页 */ private function prev_page() { if( $this->page == 1 ) { $this->html .= '' . $this->prev_label . ''.CR; } else { $this->html .= '' . $this->prev_label . ''.CR; } } /** * 下一页 */ private function next_page() { if( $this->page < $this->page_num) { $this->html .= '' . $this->next_label . ''.CR; } else { $this->html .= '' . $this->next_label . ''.CR; } } /** * 第一块 第一个省略号前的那块 */ private function first_block() { if( $this->page > ( $this->adjacent_num+1 ) ) { $this->html.= '1'.CR; } if( $this->page > ( $this->adjacent_num+2 ) ) { $this->html.= '...'.CR; } } /** * 第二块 两个省略号中间的那块 */ private function middle_block() { $page_min = ( $this->page > $this->adjacent_num ) ? ( $this->page - $this->adjacent_num ) : 1; $page_max = ( $this->page < ($this->page_num-$this->adjacent_num)) ? ($this->page+$this->adjacent_num) : $this->page_num ; for( $i=$page_min; $i<=$page_max; $i++) { if( $i == $this->page ) { $this->html .= '' . $i . ''.CR; } else { $this->html .= '' . $i . ''.CR; } } } /** * 最后一块 最后一个省略号后的的那块 */ private function last_block() { if( $this->page < ($this->page_num - $this->adjacent_num - 1)) { $this->html .= '...'.CR; } if( $this->page < ($this->page_num-$this->adjacent_num )) { $this->html .= '' . $this->page_num . ''.CR; } } /** * 显示分页 * * $out_flag bool 输出和反回分页html的标志 true:直接输出 false:返回分页的html * */ public function display( $out_flag = false ) { $this->html = '
'.CR; if( $this->display_str_flag === true ) {//首页和尾页用字符串显示 $this->first_page(); //显示首页 $this->prev_page(); //显示上一页 $this->middle_block(); //显示中间块 $this->next_page(); //显示下一页 $this->last_page(); //显示最后一页 } else {//首页和尾页用数字显示 $this->prev_page(); //显示上一页 $this->first_block(); //显示第一块 $this->middle_block(); //显示中间块 $this->last_block(); //显示最后一块 $this->next_page(); //显示下一页 } $this->html .= '
'; if($out_flag === false) {//返回分页 html码 return $this->html; } else {//输出分页 html码 echo $html; } } } /*************demo **************/ $page = new page(3,55); $page->set( $ary = array( 'display_str_flag'=>false, 'prev_label'=>'上', 'next_label'=>'下一页', 'last_label'=>'末',)); echo $page->display(); /*************demo **************/ ?>