PHP和Mysql数据库连接的例子
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 />
------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 '
'. mysql_field_name($result, $i); echo " | \n";
'; echo "$row[$i]"; echo ' | ';
echo "";
// 释放资源
mysql_free_result($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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