Create Database Web Application Using PHP Object Oriented Programming

1. Development environment:

1. Windows 7 32-bit operating system

2. Web server: Apache2.2 32-bit (Apache-2.2.17-win32-x86-openssl-0.9.8o.msi)

3、PHP：PHP5.3 Win32(php-5.3.27-Win32-VC9-x86.zip)

4. MySql database: MySql5.1 (mysql-essential-5.1.73-win32.msi)

Second, the basic installation configuration:

1. Install and configure the Apache server as port 8080 (Listen8080).

Modify the httpd.conf file

2. Configure the PHP service

In the httpd.conf file add:

LoadModule php5_moduleD:/php-5/php5apache2_2.dll

PHPIniDir "D:/php-5"

AddType application/x-httpd-php .php .phtml

3. Enable php_mysql, php_mysqli and php_mbstring extension services in the PHP configuration

Modify the php.ini file in the PHP folder

4. Create a web virtual folder ThinkPHP

Modify in the Apache configuration file httpd.conf:

#Set default loading page

DirectoryIndex index.html index.php

#set site alias

Alias /web "G:/fxp/PHP/phpWeb"

#Set access permissions

Order Allow,Deny

Allow from all

</Directory>

</IfModule>

3. Basic project settings:

1. Create a project folder under the G:/fxp/PHP/phpWeb folder: pop;

2. Create a new index.php file in this folder with the following contents:

<?php

echo 'php page';

3. Enter: http://localhost:8080/web/pop/ in the browser, the browser displays: php page.

Fourth, create the database and table

1. Select "MySQL"->"MySQL Server 5.1"->"MySQL Command Client" in the start menu

Open the MySQL command line operation window:

Enter the root user password to enter the MySQL command line operation mode.

2. Create database tempdb

create database tempdb;

3. Create a data table

use tempdb;

create table tb_user(id int (10)AUTO_INCREMENT primary key,

username varchar(80),userpassvarchar(80),tel varchar(20));

4. Add data to the table tb_user

insert into tb_user(username,userpass,tel)values('admin', md5('123456'), '7186121');

5. CRUD operations on the tb_user table

1. Display user information

First write a shared file conn.php for database connection, the content is as follows:

<?php

// use MySQLi class

$mysqli = new MySQLi('localhost','root','123456','tempdb');

if($mysqli->error){

die( 'Failed to connect to MySQL: '.$mysqli->error);

}

$mysqli->set_charset('utf8');

Design the display user information page showUser.php, the content is as follows:

<html>

<head>

<title>Browse user information</title>

</head>

<?php

include 'conn.php'; //Include the code to create the database connection

$sql = 'select * from tb_user';

$result = $mysqli->query($sql); //return mysqli_result class object

if( !$result ){

die('Failed to get data!');

}

<body>

<td width="100">Username</td>

</tr>

<?php while($record=$result->fetch_object()){//?>

<tr>

<td><?php echo $record->username;?></td>

<td><?php echo $record->userpass;?></td>

</tr>

<?php } ?>

</table>

<p align="center"><a href="addUser.html">增加新用户</a></p>

</div>

<?php $mysqli->close(); //关闭数据库连接?>

</body>

</html>

2、删除用户信息

在上述显示用户信息的页面中有删除用户的超链接，带有参数id=id值，只需要在程序中执行一个'delete from tb_user where id=#'的查询就可以实现用户数据的删除。代码如下：

<html>

<head>

<title>浏览用户信息</title>

</head>

<?php

include 'conn.php'; //包含创建数据库连接的代码

$sql = 'delete from tb_user where id='.$_GET['id'];

$result = $mysqli->query($sql);

if( $result ){

echo "<script> alert('删除一个用户信息'); window.location.href='showUser.php'; </script>";

}else{

echo "<script> alert('无用户信息'); window.location.href='showUser.php'</script>";

}

$mysqli->close(); //关闭数据库连接

<body>

</body>

</html>

3、修改用户信息

修改用户信息，先根据从查询用户信息界面传过来的id值从数据库中获取用户信息，并显示在表单的文本框中，然后提交给modiUserSave.php处理。

modiUser.php代码如下：

<html>

<head>

<title>修改用户信息</title>

<?php

include 'conn.php';

$sql = 'select * from tb_user where id='.$_GET['id'];

$result = $mysqli->query($sql);

if(!$result){

die('无此用户！');

}

$row = $result->fetch_row();

</head>

<body>

</div>

</div>

</div>

</form>

</div>

<?php $mysqli->close(); //关闭数据库连接

</body>

</html>

modiUserSave.php代码如下：

<html>

<head>

<title>保存用户信息</title>

</head>

<?php

include 'conn.php'; //包含创建数据库连接的代码

$sql = 'update tb_user set username="'.$_POST['username'].'",tel="'.$_POST['tel'].'" where id='.$_POST['id'];

$result = $mysqli->query($sql);

if( $result ){

echo "<script> alert('保存修改用户信息成功'); window.location.href='showUser.php'; </script>";

}else{

echo "<script> alert('保存修改用户信息失败'); window.location.href='showUser.php'; </script>";

}

$mysqli->close(); //关闭数据库连接

<body>

</body>

</html>

4、添加新用户

添加新用户由addUser.html页面和addUserSave.php程序组成。addUser.html页面代码如下：

<html>

<head>

<title>添加用户信息</title>

</head>

<body>

</div>

</div>

</div>

</div>

</form>

</div>

</body>

</html>

addUserSave.php程序从addUser.html页面获取提交的数据，然后存入数据库表中。addUserSave.php代码如下：

<html>

<head>

<title>保存新增用户信息</title>

</head>

<?php

include 'conn.php'; //包含创建数据库连接的代码

$sql = 'insert into tb_user(username,userpass,tel) values("'.$_POST['username']

.'","'.md5($_POST['userpass']).'","'.$_POST['tel'].'")';

$result = $mysqli->query($sql);

if( $result ){

echo "<script> alert('保存添加用户信息成功'); window.location.href ='showUser.php'; </script>";

}else{

echo "<script> alert('保存添加用户信息失败'); window.location.href ='showUser.php'; </script>";

}

$mysqli->close(); //关闭数据库连接

<body>

</body>

</html>

Create Database Web Application Using PHP Object Oriented Programming

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