复制代码 代码如下:
<?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);
?>