php操作mysql資料庫的基本類代碼

 這篇文章主要介紹了php操作mysql資料庫的基本類代碼,需要的朋友可以參考下

 代碼如下:<?php$dbhost='localhost';$dbuser='root';$dbpass='123456';$dbname='products';$connect=mysql_connect($dbhost,$dbuser,$dbpass);if(!$connect) exit('資料庫連接失敗！');mysql_select_db($dbname,$connect);mysql_query('set names utf8');//查詢$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($sql);if(mysql_affected_rows()){ echo '插入成功，插入ID為：',mysql_insert_id();}else{ echo '插入失敗：',mysql_error();}//修改$sql="UPDATE `category` SET `name`='".$name."' WHERE `id`='".$id."'";$result=mysql_query($sql);if(mysql_affected_rows()){ echo '修改成功！';}//刪除$sql="DELETE FROM `category` WHERE `id`='".$id."'";$result=mysql_query($sql);if(mysql_affected_rows()){ echo '刪除成功！';}//關閉串連mysql_close($connect);?>