PHP操作mysql数据库简单示例

先创建一个数据库MyDB

CREATE DATABASE `mydb` ;

再创建一个简单的数据表

CREATE TABLE `MyDB`.`MyTable` (
`Name` VARCHAR( 20 ) NOT NULL ,
`Age` INT NOT NULL
) ENGINE = MYISAM

插入一些数据

INSERT INTO `mydb`.`mytable` (
`Name` ,
`Age`
)
VALUES (
'Jim', '15'
), (
'Amy', '16'
), (
'Jack', '12'
), (
'Mike', '21'
);

新建一个PHP网页

<?php
$m_DB = mysql_connect("localhost","root","123"); //连接数据库
mysql_select_db("MyDB",$m_DB); //选择要操作的数据库
$sql = "SELECT * FROM MyTable"; //构造查询语句
$re  = mysql_query($sql,$m_DB); //执行查询
while($row=mysql_fetch_array($re)){ //循环输出数据
print_r($row); //打印出来
print("<br/>");
}
mysql_close($m_DB);
?>

运行结果如下：

Array ( [0] => Amy [Name] => Amy [1] => 16 [Age] => 16 )
Array ( [0] => Jim [Name] => Jim [1] => 15 [Age] => 15 )
Array ( [0] => Jack [Name] => Jack [1] => 12 [Age] => 12 )
Array ( [0] => Mike [Name] => Mike [1] => 21 [Age] => 21 )