使用PDO操作MySQL数据库的实例分享（收藏）

DROP TABLE IF EXISTS `test`;

CREATE TABLE `test` (

`id` int(10) NOT NULL DEFAULT '0',

`user` char(20) DEFAULT NULL,

PRIMARY KEY (`id`),

KEY `idx_age` (`id`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

<?php

header("content-type:text/html;charset=utf-8");

$dsn="mysql:dbname=test;host=localhost";

$db_user='root';

$db_pass='admin123';

try{

$pdo=new PDO($dsn,$db_user,$db_pass);

}catch(PDOException $e){

echo '数据库连接失败'.$e->getMessage();

}

//新增

$sql="insert into test (id,user) values (1,'phpthinking')";

$res=$pdo->exec($sql);

echo '影响行数：'.$res;

//修改

$sql="update test set user='phpthinking' where id=1";

$res=$pdo->exec($sql);

echo '影响行数：'.$res;

//查询

$sql="select * from test";

$res=$pdo->query($sql);

foreach($res as $row){

echo $row['user'].'<br/>';

}

//删除

$sql="delete from test where id=1";

$res=$pdo->exec($sql);

echo '影响行数：'.$res;