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
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