<?php<BR>$dbhost='localhos<div style="color:transparent">!本文来源gaodai.ma#com搞#代!码(网</div><em>搞gaodaima代码</em>t';<BR>$dbuser='root';<BR>$dbpass='123456';<BR>$dbname='products';<BR>$connect=mysql_connect($dbhost,$dbuser,$dbpass);<BR>if(!$connect) exit('数据库连接失败!');<BR>mysql_select_db($dbname,$connect);<BR>mysql_query('set names utf8');<BR>//查询<BR>$sql="SELECT * FROM `category`";<BR>$result=mysql_query($sql);<BR>while($row=mysql_fetch_array($result)){<BR> echo $row['id'];<BR>}<BR>//插入<BR>$sql="INSERT INTO `category` (`id`,`name`) VALUES (NULL,'".$name."')";<BR>$result=mysql_query($sql);<BR>if(mysql_affected_rows()){<BR> echo '插入成功,插入ID为:',mysql_insert_id();<BR>}else{<BR> echo '插入失败:',mysql_error();<BR>}<BR>//修改<BR>$sql="UPDATE `category` SET `name`='".$name."' WHERE `id`='".$id."'";<BR>$result=mysql_query($sql);<BR>if(mysql_affected_rows()){<BR> echo '修改成功!';<BR>}<BR>//删除<BR>$sql="DELETE FROM `category` WHERE `id`='".$id."'";<BR>$result=mysql_query($sql);<BR>if(mysql_affected_rows()){<BR> echo '删除成功!';<BR>}<BR>//关闭连接<BR>mysql_close($connect);<BR>?><BR>