<?php$dbhost='localhost';$dbuser='root';$dbpass='123456';$dbname='PRoducts';$connect=mysql_connect($dbhost,$dbuser,$dbpass);if(!$connect) exit('数据库连接失败!');mysql_select_db($dbname,$connect);mysql_query('set names utf8');//查询$sql="SELECT * FROM `category`";$result=mysql_query($sql);while($row=mysql_fetch_array($result)){echo $row['id'];}//插入$sql="INSERT INTO `category` (`id`,`name`) VALUES (NULL,'".$name."')";$result=mysql_query($sql);if(mysql_affected_rows()){echo '插入成功,插入ID为:',mysql_insert_id();}else{echo '插入失败:',mysql_error();}//修改$sql="UPDATE `category` SET `name`='".$name."' WHERE `id`='".$id."'";$result=mysql_query($sql);if(mysql_affected_rows()){echo '修改成功!';}//删除$sql="DELETE FROM `category` WHERE `id`='".$id."'";$result=mysql_query($sql);if(mysql_affected_rows()){echo '删除成功!';}//关闭连接mysql_close($connect); |