提供一款实例的分类函数,有需要的朋友可以参考一下,实例函数代码如下:
-
<?php
-
-
$page = $_get["page"];
-
function page($rows,$page_size){
-
global $page,$select_from,$select_limit,$pagenav;
-
$page_count = ceil($rows/$page_size);
-
if($page <= 1 || $page == '') $page = 1;
-
if($page >= $page_count) $page = $page_count;
-
$select_limit = $page_size;
-
$select_from = ($page - 1) * $page_size.',';
-
$pre_page = ($page == 1)? 1 : $page - 1;
-
$next_page= ($page == $page_count)? $page_count : $page + 1 ;
-
$pagenav .= "第 $page/$page_count 页 共 $rows 条记录 ";
-
$pagenav .= "<a href='?page=1'>首页</a> ";
-
$pagenav .= "<a href='?page=$pre_page'>前一页</a> ";
-
$pagenav .= "<a href='?page=$next_page'>后一页</a> ";
-
$pagenav .= "<a href='?page=$page_count'>末页</a>";
-
$pagenav.=" 跳到<select name='topage' size='1' onchange='window.location="?page="+this.value'>n";
-
for($i=1;$i<=$page_count;$i++){
-
if($i==$page) $pagenav.="<option value='$i' selected>$i</option>n";
-
else $pagenav.="<option value='$i'>$i</option>n";
-
}
-
}
-
-
if (!$conn= mysql教程_connect("localhost", "root" ,"root")) die('数据库教程选择失败!');
-
if (!mysql_select_db("test", $conn)) die('数据库选择失败!');
-
mysql_query('set names gbk');
-
-
$rows = mysql_num_rows(mysql_query("select * from test"));
-
page($rows,2);
-
-
$sql = "select * from test limit $select_from $select_limit";
-
$rst = mysql_query($sql);
-
while ($row = mysql_fetch_array($rst)){
-
echo "$row[id] - $row[sex] - $row[name] <hr />";
-
}
-
echo $pagenav;
-
?>
下面看数据库结构,新建一个数据库 test,执行下面的语句(新建一个表 test :id、sex、name 三个字段)
-
create table `test` (
-
`id` int( 4 ) not null auto_increment primary key ,
-
`sex` int( 1 ) not null ,
-
`name` varchar( 20 ) not null ) engine = myisam character set utf8 collate utf8_bin;
添加数据到 test 表,比如:
-
1 1 小强
-
2 0 小红
-
3 0 小丽
-
4 1 小兵
-
5 1 张三
-
6 0 李四
-
7 0 吴欣
-