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php连接mysql数据库并写入数据

Jun 13, 2016 am 10:08 AM
mysql php No and use write data database friend of Know program connect

使用php程序的朋友都知道php与mysql非常不错的一对了,我们常常用它来做WEB开发,下面我来介绍最简单的php连接mysql数据库并写入数据,有需要的朋友可参考。

原理步骤

1,php利用mysql_connect与mysql数据库连接

2,打开MySQL数据库

3,接受页面数据,PHP录入到指定的表中

4、然后利用mysql_query把sql执行并保存到数据库中。


连接mysql数据库超级简单如下

 代码如下 复制代码
mysql_connect("localhost","root","");//连接MySQL
mysql_select_db("hello");//选择数据库
?>

 

例1

 代码如下 复制代码

require_once("conn.php");//引用数据库链接文件

$uname = $_GET['n'];//GET方法为URL参数传递
$psw = $_GET['p'];
$psw=md5($psw);//直接使用MD5加密

$sql = "insert into members(username,password) values ('$uname','$psw')";
mysql_query($sql);//借SQL语句插入数据

mysql_close();//关闭MySQL连接
echo "成功录入数据";
?>

结合了更简单的

 代码如下 复制代码


$uname = $_GET['n'];//GET方法为URL参数传递
$psw=md5($_GET['p']);//直接使用MD5加密
$conn=mysql_connect("localhost","root","");//连接MySQL
$sql = "insert into members set username='uname',password='$psw'";
mysql_db_query("hello",$sql,$conn);//借SQL语句插入数据
?>

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