phpcms分页选择下拉框

/**
 * 分页函数
 *
 * @param $num 信息总数
 * @param $curr_page 当前分页
 * @param $perpage 每页显示数
 * @param $urlrule URL规则
 * @param $array 需要传递的数组，用于增加额外的方法
 * @return 分页
 */
function pages($num, $curr_page, $perpage = 20, $urlrule = '', $array = array(),$setpages = 3) {
	if(defined('URLRULE') && $urlrule == '') {
		$urlrule = URLRULE;
		$array = $GLOBALS['URL_ARRAY'];
	} elseif($urlrule == '') {
		$urlrule = url_par('page={$page}');
	}
	$multipage = '';
	if($num > $perpage) {
		$page = $setpages+1;
		$offset = ceil($setpages/2-1);
		$pages = ceil($num / $perpage);
		if (defined('IN_ADMIN') && !defined('PAGES')) define('PAGES', $pages);
		$from = $curr_page - $offset;
		$to = $curr_page + $offset;
		$more = 0;
		if($page >= $pages) {
			$from = 2;
			$to = $pages-1;
		} else {
			if($from <= 1) {
				$to = $page-1;
				$from = 2;
			}  elseif($to >= $pages) {
				$from = $pages-($page-2);
				$to = $pages-1;
			}
			$more = 1;
		}
		$multipage .= '<a class="a1" href="#">'.$num.L('page_item').'</a>';
		if($curr_page>0) {
			$multipage .= ' <a href="'.pageurl($urlrule, $curr_page-1, $array).'" class="a1">'.L('previous').'</a>';
			if($curr_page==1) {
				$multipage .= ' <span>1</span>';
			} elseif($curr_page>6 && $more) {
				$multipage .= ' <a href="'.pageurl($urlrule, 1, $array).'">1</a>..';
			} else {
				$multipage .= ' <a href="'.pageurl($urlrule, 1, $array).'">1</a>';
			}
		}
		for($i = $from; $i <= $to; $i++) {
			if($i != $curr_page) {
				$multipage .= ' <a href="'.pageurl($urlrule, $i, $array).'">'.$i.'</a>';
			} else {
				$multipage .= ' <span>'.$i.'</span>';
			}
		}
		if($curr_page<$pages) {
			if($curr_page<$pages-5 && $more) {
				$multipage .= ' ..<a href="'.pageurl($urlrule, $pages, $array).'">'.$pages.'</a> <a href="'.pageurl($urlrule, $curr_page+1, $array).'" class="a1">'.L('next').'</a>';
			} else {
				$multipage .= ' <a href="'.pageurl($urlrule, $pages, $array).'">'.$pages.'</a> <a href="'.pageurl($urlrule, $curr_page+1, $array).'" class="a1">'.L('next').'</a>';
			}
		} elseif($curr_page==$pages) {
			$multipage .= ' <span>'.$pages.'</span> <a href="'.pageurl($urlrule, $curr_page, $array).'" class="a1">'.L('next').'</a>';
		} else {
			$multipage .= ' <a href="'.pageurl($urlrule, $pages, $array).'">'.$pages.'</a> <a href="'.pageurl($urlrule, $curr_page+1, $array).'" class="a1">'.L('next').'</a>';
		}

		
		// 新增页面跳转下拉框 2022/11/28 wong
		$multipage .= ' <select name="archive" onchange="document.location.href=this.options[this.selectedIndex].value;">';
        $multipage .= "<option value='0'>跳转到</option>";
        for($i=1; $i<=$pages; $i++)
        {
		$multipage .= '<option value="'.pageurl($urlrule, $i, $array).'">'.'第'.$i. '页'.'</option>';
        }
        $multipage .= '</select>';
	}
	return $multipage;
}