total_record = intval($total);
$this->pagesize = intval($pagesize);
$this->cur_page = intval($cur_page);
$this->_count();
}
private function _count() //计算
{
if($this->total_record <= 0 || $this->pagesize <= 0){
$this->total_record = 0;
$this->pagesize = 0;
$this->total_pages = 0;
$this->cur_page = 0;
$this->offset = 0;
return;
}
$this->total_pages = ceil($this->total_record / $this->pagesize);
if($this->cur_page < 1 || $this->cur_page > $this->total_pages ){
$this->cur_page = 1;
}
$this->offset = ($this->cur_page - 1) * $this->pagesize;
}
//html数字连接的标签
public function num_link($url) {
if($this->total_pages == 0){
return '';
}
if($this->total_pages == 1){
return '';
}
$start = floor(($this->cur_page - 1) / $this->_pernum) * $this->_pernum + 1;
$end = $start + $this->_pernum;
$text[] = '共有 ' . $this->total_record . '条记录 | 当前' .$this->cur_page."/". $this->total_pages . '页';
if($this->total_pages > $this->_pernum){
if( $this->cur_page != 1){
$text[] = "[首页]";
} else {
$text[] = '[首页]';
}
$up = $start - $this->_pernum;
if( $up > 0 ){
$text[] = "[←]";
} else {
$text[] = '[←]';
}
}
for($i = $start;$i<$end&&$i<=$this->total_pages;$i++){
if($i != $this->cur_page){
$text[] = "$i";
} else {
$text[] = "$i";
}
}
if($this->total_pages > $this->_pernum){
$down = $this->total_pages - $end;
if($down >= 0){
$text[] = "[→]";
} else {
$text[] = '[→]';
}
if($this->cur_page != $this->total_pages){
$text[] = "[尾页]";
} else {
$text[] = '[尾页]';
}
}
return implode(' ',$text);
}
/**
* @param $maxpage 总页数
* @param $page 当前页
* @param string $para 翻页参数(不需要写$page),如http://www.example.com/article.php?page=3&id=1，$para参数就应该设为'&id=1'
* @return string 返回的输出分页html内容
*/
function multipage($url,$total, $page,$pagesize,$start, $para = '') {
$maxpage = ceil($total/$pagesize);
$end = $start+$pagesize;
$start = $start+1;
if($end >= $total){
$end = $total;
}
$multipage = ''; //输出的分页内容
$listnum = 5; //同时显示的最多可点击页面
if ($maxpage < 2) {
return '';
}else{
$offset = 2;
if ($maxpage <= $listnum) {
$from = 1;
$to = $maxpage;
} else {
$from = $page - $offset; //起始页
$to = $from + $listnum - 1; //终止页
if($from < 1) {
$to = $page + 1 - $from;
$from = 1;
if($to - $from < $listnum) {
$to = $listnum;
}
} elseif($to > $maxpage) {
$from = $maxpage - $listnum + 1;
$to = $maxpage;
}
}
$multipage .= ($page - $offset > 1 && $maxpage >= $page ? "首页" : '').
($page > 1 ? "上一页' : '');
for($i = $from; $i <= $to; $i++) {
$multipage .= ($i == $page|| ($i == 1 && !$page)) ? "'.$i.'' : "'.$i. '';
}
$page = $page==0?1:$page;
$multipage .= ($page < $maxpage ? "下一页' : '').
($to < $maxpage ? "尾页' : '');
$multipage = $multipage ? '' : '';
}
return $multipage;
}
}
?>