PHP分页类-PHP源码

分页代码

total_rows = $data[&＃39;total_rows&＃39;];
 
        $this->parameter         = !empty($data[&＃39;parameter&＃39;]) ? $data[&＃39;parameter&＃39;] : &＃39;&＃39;;
        $this->list_rows         = !empty($data[&＃39;list_rows&＃39;]) && $data[&＃39;list_rows&＃39;] <= 100 ? $data[&＃39;list_rows&＃39;] : 15;
        $this->total_pages       = ceil($this->total_rows / $this->list_rows);
        $this->page_name         = !empty($data[&＃39;page_name&＃39;]) ? $data[&＃39;page_name&＃39;] : &＃39;p&＃39;;
        $this->ajax_func_name    = !empty($data[&＃39;ajax_func_name&＃39;]) ? $data[&＃39;ajax_func_name&＃39;] : &＃39;&＃39;;
         
        $this->method           = !empty($data[&＃39;method&＃39;]) ? $data[&＃39;method&＃39;] : &＃39;&＃39;;
         
         
        /* 当前页面 */
        if(!empty($data[&＃39;now_page&＃39;]))
        {
            $this->now_page = intval($data[&＃39;now_page&＃39;]);
        }else{
            $this->now_page   = !empty($_GET[$this->page_name]) ? intval($_GET[$this->page_name]):1;
        }
        $this->now_page   = $this->now_page <= 0 ? 1 : $this->now_page;
     
         
        if(!empty($this->total_pages) && $this->now_page > $this->total_pages)
        {
            $this->now_page = $this->total_pages;
        }
        $this->first_row = $this->list_rows * ($this->now_page - 1);
    }   
     
    /**
     * 得到当前连接
     * @param $page
     * @param $text
     * @return string
     */
    protected function _get_link($page,$text)
    {
        switch ($this->method) {
            case &＃39;ajax&＃39;:
                $parameter = &＃39;&＃39;;
                if($this->parameter)
                {
                    $parameter = &＃39;,&＃39;.$this->parameter;
                }
                return &＃39;&＃39; . $text . &＃39;&＃39; . "\n";
            break;
             
            case &＃39;html&＃39;:
                $url = str_replace(&＃39;?&＃39;, $page,$this->parameter);
                return &＃39;&＃39; . $text . &＃39;&＃39; . "\n";
            break;
             
            default:
                return &＃39;&＃39; . $text . &＃39;&＃39; . "\n";
            break;
        }
    }
     
     
    /**
     * 设置当前页面链接
     */
    protected function _set_url()
    {
        $url  =  $_SERVER[&＃39;REQUEST_URI&＃39;].(strpos($_SERVER[&＃39;REQUEST_URI&＃39;],&＃39;?&＃39;)?&＃39;&＃39;:"?").$this->parameter;
        $parse = parse_url($url);
        if(isset($parse[&＃39;query&＃39;])) {
            parse_str($parse[&＃39;query&＃39;],$params);
            unset($params[$this->page_name]);
            $url   =  $parse[&＃39;path&＃39;].&＃39;?&＃39;.http_build_query($params);
        }
        if(!empty($params))
        {
            $url .= &＃39;&&＃39;;
        }
        $this->url = $url;
    }
     
    /**
     * 得到$page的url
     * @param $page 页面
     * @return string
     */
    protected function _get_url($page)
    {
        if($this->url === NULL)
        {
            $this->_set_url();   
        }
    //  $lable = strpos(&＃39;&&＃39;, $this->url) === FALSE ? &＃39;&＃39; : &＃39;&&＃39;;
        return $this->url . $this->page_name . &＃39;=&＃39; . $page;
    }
     
     
    /**
     * 得到第一页
     * @return string
     */
    public function first_page($name = &＃39;第一页&＃39;)
    {
        if($this->now_page > 5)
        {
            return $this->_get_link(&＃39;1&＃39;, $name);
        }   
        return &＃39;&＃39;;
    }
     
    /**
     * 最后一页
     * @param $name
     * @return string
     */
    public function last_page($name = &＃39;最后一页&＃39;)
    {
        if($this->now_page <$this->total_pages - 5)
        {
            return $this->_get_link($this->total_pages, $name);
        }   
        return &＃39;&＃39;;
    }  
     
    /**
     * 上一页
     * @return string
     */
    public function up_page($name = &＃39;上一页&＃39;)
    {
        if($this->now_page != 1)
        {
            return $this->_get_link($this->now_page - 1, $name);
        }
        return &＃39;&＃39;;
    }
     
    /**
     * 下一页
     * @return string
     */
    public function down_page($name = &＃39;下一页&＃39;)
    {
        if($this->now_page <$this->total_pages)
        {
            return $this->_get_link($this->now_page + 1, $name);
        }
        return &＃39;&＃39;;
    }
 
    /**
     * 分页样式输出
     * @param $param
     * @return string
     */
    public function show($param = 1)
    {
        if($this->total_rows <1)
        {
            return &＃39;&＃39;;
        }
         
        $className = &＃39;show_&＃39; . $param;
         
        $classNames = get_class_methods($this);
 
        if(in_array($className, $classNames))
        {
            return $this->$className();
        }
        return &＃39;&＃39;;
    }
     
    protected function show_2()
    {
        if($this->total_pages != 1)
        {
            $return = &＃39;&＃39;;
            $return .= $this->up_page(&＃39;<&＃39;);
            for($i = 1;$i<=$this->total_pages;$i++)
            {
                if($i == $this->now_page)
                {
                    $return .= "$i\n";
                }
                else
                {
                    if($this->now_page-$i>=4 && $i != 1)
                    {
                        $return .="...\n";
                        $i = $this->now_page-3;
                    }
                    else
                    {
                        if($i >= $this->now_page+5 && $i != $this->total_pages)
                        {
                            $return .="...\n"; 
                            $i = $this->total_pages;
                        }
                        $return .= $this->_get_link($i, $i) . "\n";
                    }
                }
            }
            $return .= $this->down_page(&＃39;>&＃39;);
            return $return;
        }
    }
     
    protected function show_1()
    {
        $plus = $this->plus;
        if( $plus + $this->now_page > $this->total_pages)
        {
            $begin = $this->total_pages - $plus * 2;
        }else{
            $begin = $this->now_page - $plus;
        }
         
        $begin = ($begin >= 1) ? $begin : 1;
        $return = &＃39;&＃39;;
        $return .= $this->first_page();
        $return .= $this->up_page();
        for ($i = $begin; $i <= $begin + $plus * 2;$i++)
        {
            if($i>$this->total_pages)
            {
                break;
            }
            if($i == $this->now_page)
            {
                $return .= "$i\n";
            }
            else
            {
                $return .= $this->_get_link($i, $i) . "\n";
            }
        }
        $return .= $this->down_page();
        $return .= $this->last_page();
        return $return;
    }
     
    protected function show_3()
    {
        $plus = $this->plus;
        if( $plus + $this->now_page > $this->total_pages)
        {
            $begin = $this->total_pages - $plus * 2;
        }else{
            $begin = $this->now_page - $plus;
        }       
        $begin = ($begin >= 1) ? $begin : 1;
        $return = &＃39;总计 &＃39; .$this->total_rows. &＃39; 个记录分为 &＃39; .$this->total_pages. &＃39; 页, 当前第 &＃39; . $this->now_page . &＃39; 页 &＃39;;
        $return .= &＃39;,每页 &＃39;;
        $return .= &＃39; &＃39;;
        $return .= $this->first_page()."\n";
        $return .= $this->up_page()."\n"; 
        $return .= $this->down_page()."\n";
        $return .= $this->last_page()."\n";
        $return .= &＃39;&＃39;;
        
        for ($i = $begin;$i<=$begin+10;$i++)
        {
            if($i>$this->total_pages)
            {
                break;
            }           
            if($i == $this->now_page)
            {
                $return .= &＃39;&＃39;.$i.&＃39;&＃39;;
            }
            else
            {
                $return .= &＃39;&＃39; .$i. &＃39;&＃39;;
            }           
        }
         $return .= &＃39;&＃39;;
        return $return;
    }
}

使用方法

###处理html静态化页面分页的情况###
# method 处理环境 设置为 html 
# parameter 为静态页面参数  xxx.com/20-0-0-0-40-?.html 注意问号
# ?问号的位置会自动替换为去向页码 
# now_page 当前页面(静态页面获取不到当前页面所以只有你传入)
$params = array(
            &＃39;total_rows&＃39;=>100, #(必须)
            &＃39;method&＃39;    =>&＃39;html&＃39;, #(必须)
            &＃39;parameter&＃39; =>&＃39;xxx.com/20-0-0-0-40-?.html&＃39;,  #(必须)
            &＃39;now_page&＃39;  =>$_GET[&＃39;p&＃39;],  #(必须)
            &＃39;list_rows&＃39; =>10, #(可选) 默认为15
);
$page = new Core_Lib_Page($params);
echo  $page->show(1);
#2
 
 
###处理ajax分页的情况###
# method 处理环境 设置为 ajax
# ajax_func_name ajax分页跳转页面的Javascript方法
# parameter    ajax_func_name后面的附带参数 默认为空
# now_page 不到当前页面所以只有你传入
$params = array(
            &＃39;total_rows&＃39;=>100,
            &＃39;method&＃39;    =>&＃39;ajax&＃39;,
            &＃39;ajax_func_name&＃39; =>&＃39;goToPage&＃39;,
            &＃39;now_page&＃39;  =>1,
            #&＃39;parameter&＃39; =>"&＃39;jiong&＃39;,&＃39;username&＃39;",
);
$page = new Core_Lib_Page($params);
echo  $page->show(1);        
#7
#添加了parameter6