首页 > 语言 > PHP > 正文

基于Codeigniter框架实现的student信息系统站点动态发布功能详解

2024-05-04 23:56:11
字体:
来源:转载
供稿:网友

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 SystemCongratulations. 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。


注:相关教程知识阅读请移步到PHP教程频道。
发表评论 共有条评论
用户名: 密码:
验证码: 匿名发表

图片精选