[PHP实例] PHP分页类

<?php

/**

* 分页类

*

* author lynnluo

* addtime 2011-08-15

*/
http://m.hwjbyby.com/nxby/qtby/262.html
define( 'PAGE_NAME','page' );// url '....php?page=2'中的page名称

define( 'CR',"\n" );// 换行符

class page

{

private $prev_label = ' 上一页 ';//

private $next_label = ' 下一页 ';//

private $first_label = ' 首页 ';//

private $last_label = ' 尾页 ';//

private $per_page = 10;//每页显示多少条

private $adjacent_num = 2;//当前页相邻的显示量

private $page_num; //总页数

private $page; //第几页

private $html;//返回分页的html源码

private $display_str_flag = true;//首页和尾页用字符串or数字显示 true：字符串 其它则显示数字

/**

* 构造函数

* $per_page int 每页显示多少条

* $totle int 总数量

*/

public function __construct( $per_page, $totle )

{http://m.hwjbyby.com/nxby/dnlc/263.html

$this->per_page = intval($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;

}

}
http://m.hwjbyby.com/nxby/dnlc/264.html
/**

* 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 .= '<span>' . $this->first_label . '</span>'.CR;

}

else

{

$this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'=1">' . $this->first_label . '</a>'.CR;

}

}

/**

* 尾页

*/

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;

}

}http://m.hwjbyby.com/nxby/lcxby/265.html

/**

* 上一页

*/

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;

}

}

/**

* 下一页

*/

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;

}

}

/**

* 第一块 第一个省略号前的那块

*/

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 .= '<span class="current">' . $i . '</span>'.CR;

}

else

{

$this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'=' . $i . '">' . $i . '</a>'.CR;

}

}

}

/**

* 最后一块 最后一个省略号后的的那块

*/

private function last_block()

{http://m.hwjbyby.com/nxby/dnlc/266.html

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;

}

}

/**

* 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 = '<div class="pagin">'.CR;

m.hwjbyby.com

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 .= '</div>';

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 ~ 6KB    下载(39)

?<?php

/**

* 分页类

*

* author lynnluo

* addtime 2011-08-15

*/

define( 'PAGE_NAME','page' );// url '....php?page=2'中的page名称

define( 'CR',"\n" );// 换行符

class page

{

private $prev_label = ' 上一页 ';//

private $next_label = ' 下一页 ';//

private $first_label = ' 首页 ';//

private $last_label = ' 尾页 ';//

private $per_page = 10;//每页显示多少条

private $adjacent_num = 2;//当前页相邻的显示量

private $page_num; //总页数

private $page; //第几页

private $html;//返回分页的html源码

private $display_str_flag = true;//首页和尾页用字符串or数字显示 true：字符串 其它则显示数字

/**

* 构造函数

* $per_page int 每页显示多少条

* $totle int 总数量

*/

public function __construct( $per_page, $totle )

{

$this->per_page = intval($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 .= '<span>' . $this->first_label . '</span>'.CR;

}

else

{

$this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'=1">' . $this->first_label . '</a>'.CR;

}

}

/**

* 尾页

*/

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;

}

}

/**

* 上一页

*/

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;

}

}

/**

* 下一页

*/

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;

}

}

/**

* 第一块 第一个省略号前的那块

*/

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 .= '<span class="current">' . $i . '</span>'.CR;

}

else

{

$this->html .= '<a href="' . $this->getURL() .PAGE_NAME.'=' . $i . '">' . $i . '</a>'.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 .= '<a href="' . $this->getURL() .PAGE_NAME.'=' . $this->page_num . '">' . $this->page_num . '</a>'.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 = '<div class="pagin">'.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 .= '</div>';

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 **************/

?>