php操作mysql数据库的基本类
代码如下 | 复制代码 |
<?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); |