PHP分頁類

phpw34 9年前發布 | 1K 次閱讀 PHP

<?php
/**

  • 分頁類
  • author lynnluo
  • addtime 2011-08-15 */

define( 'PAGE_NAME','page' );// url '....php?page=2'中的page名稱 define( 'CR',"\n" );// 換行符

class page { private $prev_label = ' 上一頁 ';// private $next_label = ' 下一頁 ';// private $first_label = ' 首頁 ';// private $last_label = ' 尾頁 ';//

private $per_page   = 10;//每頁顯示多少條
private $adjacent_num   = 2;//當前頁相鄰的顯示量
private $page_num;  //總頁數
private $page;      //第幾頁

private $html;//返回分頁的html源碼

private $display_str_flag = true;//首頁和尾頁用字符串or數字顯示  true:字符串     其它則顯示數字

/**
 * 構造函數
 * $per_page int 每頁顯示多少條
 * $totle int   總數量 
 */
public function __construct( $per_page, $totle )
{
    $this->per_page = intval($per_page)<1 ? $this->per_page : intval($per_page);//每頁顯示條數小于1時 默認為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;//當前頁碼小于1時默認為第一頁
    $this->page     = $this->page > $this->page_num ?  $this->page_num : $this->page;//當前頁碼超過最大頁碼時默認為最后一頁

    $this->html     = '';
}

/**
 * 私有屬性賦值時的錯誤處理
 */ 
public function __set( $aa ,$bb){}

/**
 * 配置類的私有屬性  
 * $ary  array  鍵值對,鍵為該類的私有屬性
 */
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;
    }
}

/**
 * 返回當前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;
}

/**
 * 首頁
 */
private function first_page()
{
    if( $this->page == 1 )
    {
        $this->html .= '<span>' . $this->first_label . '</span>'.CR;
    }
    else 
    {
        $this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'=1">' . $this->first_label . '</a>'.CR;
    }
}

/**
 * 尾頁
 */
private function last_page()
{
    if( $this->page == $this->page_num )
    {
        $this->html .= '<span>' . $this->last_label . '</span>'.CR;
    }
    else 
    {
        $this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'='.$this->page_num.'">' . $this->last_label . '</a>'.CR;
    }
}

/**
 * 上一頁
 */
private function prev_page()
{
    if( $this->page == 1 )
    {
        $this->html .= '<span>' . $this->prev_label . '</span>'.CR;
    }
    else 
    {
        $this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'=' . ( $this->page - 1 ) . '">' . $this->prev_label . '</a>'.CR;
    }
}

/**
 * 下一頁
 */
private function next_page()
{ 
    if( $this->page < $this->page_num) 
    {
        $this->html .= '<a href="' . $this->getURL().PAGE_NAME.'=' . ( $this->page+1) . '">' . $this->next_label . '</a>'.CR;
    }
    else 
    {
        $this->html .= '<span>' . $this->next_label . '</span>'.CR;
    }
}

/**
 * 第一塊  第一個省略號前的那塊
 */
private function first_block()
{
    if( $this->page > ( $this->adjacent_num+1 ) ) 
    {
        $this->html.= '<a href="' . $this->getURL().PAGE_NAME.'=1">1</a>'.CR;
    }
    if( $this->page > ( $this->adjacent_num+2 ) ) 
    {
        $this->html.= '...'.CR;
    }
}

/**
 * 第二塊  兩個省略號中間的那塊
 */
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 .= '<span class="current">' . $i . '</span>'.CR;
        }
        else
        {
            $this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'=' . $i . '">' . $i . '</a>'.CR;
        }
    }
}

/**
 * 最后一塊  最后一個省略號后的的那塊
 */
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 .= '<a href="' . $this->getURL() .PAGE_NAME.'=' . $this->page_num . '">' . $this->page_num . '</a>'.CR;
    }
}

/**
 * 顯示分頁
 * 
 * $out_flag bool 輸出和反回分頁html的標志  true:直接輸出   false:返回分頁的html
 * 
 */
public function display( $out_flag = false ) 
{       
    $this->html = '<div class="pagin">'.CR;

    if( $this->display_str_flag === true )
    {//首頁和尾頁用字符串顯示
        $this->first_page();    //顯示首頁
        $this->prev_page();     //顯示上一頁
        $this->middle_block();  //顯示中間塊
        $this->next_page();     //顯示下一頁 
        $this->last_page();     //顯示最后一頁 
    }
    else 
    {//首頁和尾頁用數字顯示
        $this->prev_page();     //顯示上一頁
        $this->first_block();   //顯示第一塊
        $this->middle_block();  //顯示中間塊
        $this->last_block();    //顯示最后一塊
        $this->next_page();     //顯示下一頁
    }

    $this->html .= '</div>';

    if($out_flag === false)
    {//返回分頁 html碼
        return $this->html;
    }
    else
    {//輸出分頁 html碼
        echo $html;
    }
}

}

/*demo **/ $page = new page(3,55); $page->set( $ary = array( 'display_str_flag'=>false, 'prev_label'=>'上', 'next_label'=>'下一頁', 'last_label'=>'末',)); echo $page->display(); /*demo **/ ?>

分頁類&nbsp;~&nbsp;6KB&nbsp;&nbsp;&nbsp;&nbsp;下載(39)

?<?php /**

  • 分頁類
  • author lynnluo
  • addtime 2011-08-15 */

define( 'PAGE_NAME','page' );// url '....php?page=2'中的page名稱 define( 'CR',"\n" );// 換行符

class page { private $prev_label = ' 上一頁 ';// private $next_label = ' 下一頁 ';// private $first_label = ' 首頁 ';// private $last_label = ' 尾頁 ';//

private $per_page   = 10;//每頁顯示多少條
private $adjacent_num   = 2;//當前頁相鄰的顯示量
private $page_num;  //總頁數
private $page;      //第幾頁

private $html;//返回分頁的html源碼

private $display_str_flag = true;//首頁和尾頁用字符串or數字顯示  true:字符串     其它則顯示數字

/**
 * 構造函數
 * $per_page int 每頁顯示多少條
 * $totle int   總數量 
 */
public function __construct( $per_page, $totle )
{
    $this->per_page = intval($per_page)<1 ? $this->per_page : intval($per_page);//每頁顯示條數小于1時 默認為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;//當前頁碼小于1時默認為第一頁
    $this->page     = $this->page > $this->page_num ?  $this->page_num : $this->page;//當前頁碼超過最大頁碼時默認為最后一頁

    $this->html     = '';
}

/**
 * 私有屬性賦值時的錯誤處理
 */ 
public function __set( $aa ,$bb){}

/**
 * 配置類的私有屬性  
 * $ary  array  鍵值對,鍵為該類的私有屬性
 */
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;
    }
}

/**
 * 返回當前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;
}

/**
 * 首頁
 */
private function first_page()
{
    if( $this->page == 1 )
    {
        $this->html .= '<span>' . $this->first_label . '</span>'.CR;
    }
    else 
    {
        $this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'=1">' . $this->first_label . '</a>'.CR;
    }
}

/**
 * 尾頁
 */
private function last_page()
{
    if( $this->page == $this->page_num )
    {
        $this->html .= '<span>' . $this->last_label . '</span>'.CR;
    }
    else 
    {
        $this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'='.$this->page_num.'">' . $this->last_label . '</a>'.CR;
    }
}

/**
 * 上一頁
 */
private function prev_page()
{
    if( $this->page == 1 )
    {
        $this->html .= '<span>' . $this->prev_label . '</span>'.CR;
    }
    else 
    {
        $this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'=' . ( $this->page - 1 ) . '">' . $this->prev_label . '</a>'.CR;
    }
}

/**
 * 下一頁
 */
private function next_page()
{ 
    if( $this->page < $this->page_num) 
    {
        $this->html .= '<a href="' . $this->getURL().PAGE_NAME.'=' . ( $this->page+1) . '">' . $this->next_label . '</a>'.CR;
    }
    else 
    {
        $this->html .= '<span>' . $this->next_label . '</span>'.CR;
    }
}

/**
 * 第一塊  第一個省略號前的那塊
 */
private function first_block()
{
    if( $this->page > ( $this->adjacent_num+1 ) ) 
    {
        $this->html.= '<a href="' . $this->getURL().PAGE_NAME.'=1">1</a>'.CR;
    }
    if( $this->page > ( $this->adjacent_num+2 ) ) 
    {
        $this->html.= '...'.CR;
    }
}

/**
 * 第二塊  兩個省略號中間的那塊
 */
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 .= '<span class="current">' . $i . '</span>'.CR;
        }
        else
        {
            $this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'=' . $i . '">' . $i . '</a>'.CR;
        }
    }
}

/**
 * 最后一塊  最后一個省略號后的的那塊
 */
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 .= '<a href="' . $this->getURL() .PAGE_NAME.'=' . $this->page_num . '">' . $this->page_num . '</a>'.CR;
    }
}

/**
 * 顯示分頁
 * 
 * $out_flag bool 輸出和反回分頁html的標志  true:直接輸出   false:返回分頁的html
 * 
 */
public function display( $out_flag = false ) 
{       
    $this->html = '<div class="pagin">'.CR;

    if( $this->display_str_flag === true )
    {//首頁和尾頁用字符串顯示
        $this->first_page();    //顯示首頁
        $this->prev_page();     //顯示上一頁
        $this->middle_block();  //顯示中間塊
        $this->next_page();     //顯示下一頁 
        $this->last_page();     //顯示最后一頁 
    }
    else 
    {//首頁和尾頁用數字顯示
        $this->prev_page();     //顯示上一頁
        $this->first_block();   //顯示第一塊
        $this->middle_block();  //顯示中間塊
        $this->last_block();    //顯示最后一塊
        $this->next_page();     //顯示下一頁
    }

    $this->html .= '</div>';

    if($out_flag === false)
    {//返回分頁 html碼
        return $this->html;
    }
    else
    {//輸出分頁 html碼
        echo $html;
    }
}

}

/*demo **/ $page = new page(3,55); $page->set( $ary = array( 'display_str_flag'=>false, 'prev_label'=>'上', 'next_label'=>'下一頁', 'last_label'=>'末',)); echo $page->display(); /*demo **/ ?></pre>

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