page = max(1, isset($params['page']) ? intval($params['page']) : 1);
$this->total = max(1, isset($params['total']) ? intval($params['total']) : 1);
$this->number = max(1, isset($params['number']) ? intval($params['number']) : 1);
$this->bt_number = isset($params['bt_number']) ? intval($params['bt_number']) : 2;
$this->where = (isset($params['where']) && is_array($params['where'])) ? $params['where'] : '';
$this->not_fields = (!empty($params['not_fields']) && is_array($params['not_fields'])) ? $params['not_fields'] : [];
$this->url = isset($params['url']) ? $params['url'] : '';
$this->page_total = 1;
$this->html = '';
/* 参数设置 */
$this->SetParem();
}
/**
* [SetParem 参数设置]
*/
private function SetParem()
{
/* 防止超出最大页码数 */
$this->page_total = ceil($this->total/$this->number);
if($this->page > $this->page_total) $this->page = $this->page_total;
/* url是否包含问号 */
$state = stripos($this->url, '?');
/* 额外条件url设置 */
if(!empty($this->where) && is_array($this->where))
{
$tmp = true;
foreach($this->where as $k=>$v)
{
if(!in_array($k, $this->not_fields) && !is_array($v))
{
if($k == 'page')
{
continue;
}
$k = htmlspecialchars($k);
$v = htmlspecialchars($v);
if($tmp)
{
$this->url .= ($state === false) ? '?' : '&';
$this->url .= $k.'='.$v;
$tmp = false;
} else {
$this->url .= '&'.$k.'='.$v;
}
}
}
$this->page_join = ($tmp == false) ? '&' : (($state === false) ? '?' : '&');
} else {
$this->page_join = ($state === false) ? '?' : '&';
}
}
/**
* [GetPageHtml 获取生成好的分页代码]
*/
public function GetPageHtml()
{
$before_disabled = ($this->page > 1) ? '' : ' class="am-disabled"';
$after_disabled = ($this->page > 0 && $this->page < $this->page_total) ? '' : ' class="am-disabled"';
$this->html .= '';
return $this->html;
}
/**
* [GetButtonNumberHtml 获取button显示个数的html]
* @return [string] [按钮个数html代码]
*/
private function GetButtonNumberHtml()
{
$html_before = '';
$html_after = '';
$html_page = ''.$this->page.'';
if($this->bt_number > 0)
{
/* 前按钮 */
if($this->page > 1)
{
$total = ($this->page-$this->bt_number < 1) ? 1 : $this->page-$this->bt_number;
for($i=$this->page-1; $i>=$total; $i--)
{
$html_before = ''.$i.''.$html_before;
}
}
/* 后按钮 */
if($this->page_total > $this->page)
{
$total = ($this->page+$this->bt_number > $this->page_total) ? $this->page_total : $this->page+$this->bt_number;
for($i=$this->page+1; $i<=$total; $i++)
{
$html_after .= ''.$i.'';
}
}
}
return $html_before.$html_page.$html_after;
}
/**
* [GetPageStarNumber 获取分页起始值]
*/
public function GetPageStarNumber()
{
return intval(($this->page-1)*$this->number);
}
}
?>