如何基于codeigniter框架实现student信息系统站点动态发布功能?

如何基于codeigniter框架实现student信息系统站点动态发布功能?

本文实例讲述了基于Codeigniter框架实现的student信息系统站点动态发布功能。分享给大家供大家参考,具体如下:

既然是动态站点,肯定有数据库表的存在,在此不废话,下面我们来看一下数据库表:

CREATE TABLE IF NOT EXISTS `student`(
  //主键id
  `id` int(11) NOT NULL AUTO_INCREMENT,
  //学生姓名
  `s_name` varchar(64) NOT NULL,
  //学生家长的姓名
  `p_name` varchar(64) NOT NULL,
  //学生的家庭住址
  `address` varchar(100) NOT NULL,
  //所在城市
  `city` varchar(30) NOT NULL,
  //所在国家
  `state` varchar(30) NOT NULL,
  //所在地区的邮政编码
  `zip` varchar(20) NOT NULL,
  //电话
  `phone` varchar(15) NOT NULL,
  //邮件
  `email` varchar(20) NOT NULL,
  //主键设置
  PRIMARY KEY(`id`)
)ENGINE=INNODB DEFAULT CHARSET=UTF8 AUTO_INCREMENT=1;

*注:在此我有两个地方需要解释一下:

1."IF NOT EXISTS":如果数据在创建表的时候,在前面加上了"IF NOT EXISTS",那就表明即使此表已经存在,也会执行成功;

2."ENGINE=INNODB":这个是数据库的引擎设置,常用mysql数据库引擎有ISAM,MYISAM,HEAP等;

具体参考资料:http://baike.baidu.com/view/68455.htm

在创建完数据表之后,我们再来看一下数据库的连接。打开.\application\config\database.php文件,在内设置数据库变量参数,在.\application\config\config.php文件内设置基本的URL,对于我的基本url是:http://localhost/codeigniter/

下面我们来看看mvc思想架构的设计

首先打开.application\controllers\文件目录,在里面创建一个student.php控制器:

student.php

在此我们先来通过student这个控制器来测试一下,打印出helloworld,记住访问路径是:http://localhost/codeigniter/index.php/student/index

class student extends CI_Controller{
  //student controller construct
  public function __construct(){
   parent::__construct();
  }
  //index test function
  public function index(){
   echo "helloworld";
  }
}

it output: helloworld

下面我们来换一下,看看下面这段code:

class student extends CI_Controller{
  //student controller
  public function __construct(){
   parent::__construct();
  }
  //define a array,name is arraydata, it have three parameters
  protected $arraydata=array(
   'title'=>'Classroom:Home page',
   'headline'=>'welcome to the classroom Mangement System',
   'include'=>'student_index'
  );
  //index function
  public function index(){
   $this->load->view('template',$this->arraydata);
  }
}

这段代码需要一个视图,template.php

template.php:

<!DOCTYPE html PUBLIC '-//W3C//DTD HTML 4.01 Strict//EN' 'http://www.w3.org/TR/html4/strict.dtd'>
<html>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>
<title><?php echo $title; ?></title>
</head>
<body>
 <h1><?php echo $headline; ?></h1>
 <?php $this->load->view($include)?>
</body>
</html>

其中:

this−>load−>view(include);

包含的是另外一个视图文件studen_index.php文件

student_index.php:

<p>Congratulations. Your initial setup is complete!</p>

联合输出:

welcome to the classroom Mangement System
Congratulations. Your initial setup is complete!

数据的CURD

C 控制器

先来看看数据的增加过程,在student控制器中增加一个add()方法

class student extends CI_Controller{
  //student controller
  public function __construct(){
   parent::__construct();
  }
  //new add function
  public function add(){
   $this->load->helper('form');
   //display information for the view
   $data['title']='Classroom:Add Page';
   $data['headline']='Add data';
   $data['include']='student_add';
   //upload view
   $this->load->view('template',$data);
  }
  //create function
  public function create(){
   $this->load->helper('url');
   $this->load->model('MStudent','',TRUE);
   $this->MStudent->addData($_POST);
   redirect('student/add','reflesh');
  }
  //update function
  public function update(){
   //upload codeigniter library
   $this->load->library('table');
   $this->load->model('MStudent','',TRUE);
   $student_query=$this->MStudent->updateData();
   $update_table=$this->table->generate($student_query);
   //display information for the view
   $data['title']='Classroom:Update Page';
   $data['headline']='Update Page';
   $data['include']='update_student';
   $data['updatetable']=$update_table;
   $this->load->view('template',$data);
  }
  //index function
  public function index(){
   $data['title']='Classroom:Home page';
   $data['headline']='welcome to classroom Mangement System';
   $data['include']='student_index';
   $this->load->view('template',$this->arraydata);
  }
}

V 视图

template .php

<html>
 <head>
  <title><?php echo $title;?></title>
 </head>
 <body>
  <h1><?php echo $headline ?></h1>
  <?php $this->load->view($include)?>
 </body>
</html>

student_add.php

<?php
 echo form_open('student/create');
 $field_name=array('s_name','p_name','address','city','state','zip','phone','email');
 foreach($field_name as $value){
  echo "<p>".$value.":"
  echo form_input(array('name'=>$value));
  echo "</p>"
 }
 form_submit('','Add');
 form_close();
?>

update_student.php

<?php
 echo $updatetable;
?>

M 模型

class MStudent extends CI_Model{
 public function addData($data){
  $this->db->insert('student',$data);
 }
 public function updateData(){
  $this->db->get('student');
 }
}

希望本文所述对大家基于CodeIgniter框架的PHP程序设计有所帮助。