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PHP和Mysql数据库连接的例子

Jun 13, 2016 pm 12:10 PM
echo lt mysql nbsp

求一个PHP和Mysql数据库连接的例子
新手跪求一个PHP和Mysql数据库连接的例子,

找了好多,都找不到,都连接不成功!

跪求!跪求 啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊
------解决思路----------------------
mysql_connect('localhost',‘root', '口令');

------解决思路----------------------

<br />$conn=mysql_connect("localhost","root","123456");<br />	if(!$conn){<br />		die("连接失败".mysql_error());	<br />	}<br />	mysql_select_db("test");<br />	mysql_query("set names utf8");<br />	$sql="select * from test";<br />	$res=mysql_query($sql,$conn);<br />	while($row=mysql_fetch_row($res)){<br />		$data[]=$row;<br />	}<br />	mysql_free_result($res);<br />	mysql_close($conn);<br />
Copy after login

------解决思路----------------------
我准备建立一个简单的通讯录,数据库的名字叫txl,数据库只有一个表叫personal_info,表中有5个字段
pi_id  pi_name  pi_tel  pi_qq  pi_email

首先我们要创建数据库:
create database txl;
然后我们建立表
CREATE TABLE `personal_info` (
`pi_id` bigint(20) NOT NULL auto_increment,
`pi_name` varchar(50) NOT NULL,
`pi_tel` varchar(15) default NULL,
`pi_qq` varchar(15) default NULL,
`pi_email` varchar(50) default NULL,
PRIMARY KEY (`pi_id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=4 ;
上面的sql语句很简单,通过字面都能猜出什么意思。
下面是连接到数据库并且显示表personal_info的所有字段信息:
// connsql.php
$mysql_server_name="localhost"; //数据库服务器名称
$mysql_username="root"; // 连接数据库用户名
$mysql_password="root"; // 连接数据库密码
$mysql_database="lxr"; // 数据库的名字

// 连接到数据库
$conn=mysql_connect($mysql_server_name, $mysql_username,
$mysql_password);

// 从表中提取信息的sql语句
$strsql="select * from personal_info";
// 执行sql查询
$result=mysql_db_query($mysql_database, $strsql, $conn);
// 获取查询结果
$row=mysql_fetch_row($result);

echo '';
echo '';

// 显示字段名称
echo "\n\n";
for ($i=0; $i{
echo '\n";
}
echo "\n";
// 定位到第一条记录
mysql_data_seek($result, 0);
// 循环取出记录
while ($row=mysql_fetch_row($result))
{
echo "\n";
for ($i=0; $i{
echo '';
}
echo "\n";
}

echo "
'.
mysql_field_name($result, $i);
echo "
';
echo "$row[$i]";
echo '
\n";
echo "
";
// 释放资源
mysql_free_result($result);
// 关闭连接
mysql_close();?
?>

下面是运行结果:
pi_id  pi_name  pi_tel  pi_qq  pi_email
1  Zhangsan  13911111111  642864125  [email protected]
2  Lisi  13122222222  63958741  [email protected]
3  Wangwu  13833333333  912345678  [email protected]

所谓“万变不离其宗”,再复杂的操作也都是基于上面的来的,都少不了上面的基本的步骤,当需要时查一下相关的手册便可以解决。

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