自定义分页类代码

/**
 * 分页效果显示
 */
function getPagestr($url, $totalNum, $showNum, $page) {
	$totalPage = ceil($totalNum / $showNum);

	$page = intval($_GET[‘p‘]);
	$page = ($page < 1)? 1 : $page;

	$start = ($page - 1) * $showNum;

	$prev = $page - 1;
	$prev = max($prev, 1);
	$next = $page + 1;
	$next = min($next, $totalPage);

	$str .= ‘‘;
	$str .= ‘<a href="‘.$url.‘&p=1" style="cursor:pointer">首页</a> ‘;
	for($i=4; $i>0; $i--) {
		$page_i = $page - $i;
		if($page_i < 1) continue;
			
		$str .= ‘ <a href="‘.$url.‘&p=‘.$page_i.‘" style="cursor:pointer">‘.$page_i.‘</a> ‘;
	}

	$str .= ‘ <span class="page-cur">‘.$page.‘</span> ‘;

	for($i=1; $i<5; $i++) {
		$page_i = $page + $i;
		if($page_i > $totalPage) continue;
			
		$str .= ‘ <a href="‘.$url.‘&p=‘.$page_i.‘" style="cursor:pointer">‘.$page_i.‘</a> ‘;
	}
	$str .= ‘ <a href="‘.$url.‘&p=‘.$totalPage.‘" style="cursor:pointer">尾页</a> ‘;

	$str .= ‘共返回 ‘.$totalNum.‘ 条数据 ‘;
	$str .= ‘共 ‘.$totalPage.‘ 页 ‘;

	return $str;
}