本文实例讲述了CodeIgniter框架基本增删改查操作。分享给大家供大家参考，具体如下：
对于codeigniter的增删改，在此我用自己的一个例子来说明一下：
创建数据库：
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CREATE TABLE IF NOT EXISTS `users` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`username` varchar(50) NOT NULL,
`password` varchar(50) NOT NULL,
`email` varchar(100) NOT NULL,
`fullname` varchar(100) NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `username` (`username`),
UNIQUE KEY `email` (`email`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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Model
MTest.php
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<?php
class MTest extends CI_Model{
public function __construct(){
parent::__construct();
$this->load->database();
}
//insert into data
public function insert_users($arr){
$this->db->insert('users',$arr);
}
//delete data
public function delete_users($id){
$this->db->where('id',$id);
$this->db->delete('users');
}
//Alter data
public function update_users($username,$arr){
$this->db->where('username',$username);
$this->db->update('users',$arr);
}
//select data
public function select_users($id){
$this->db->where('id',$id);
$this->db->select('*');
return $this->db->get('users');
//注意如果你返回的是以下内容的话，他就是一个对象的结果集，这样当你返回controller中时，你就得转换；
// return $query->result();
}
}
?>
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Controller
home.php
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<?php
/**
* xxx.php
* ==============================================
* Copy right 2012-2015
* ----------------------------------------------
* This is not a free software, without any authorization is not allowed to use and spread.
* ==============================================
* @Author:YeXianMing
* @Email:LangWaiShiGe@hotmail.com
* @Version:zend studio10.6.2 php5.4.38 apache2.2
*/
if(!defined('BASEPATH'))exit('No direct script access allowed');
class Home extends CI_Controller{
public function __construct(){
parent::__construct();
}
//insert data
public function insert(){
$this->load->model('MTest','',TRUE);
$arr=array('username'=>'yexianming1','password'=>'admin','email'=>'11504160314qq.com','fullname'=>'luotianyexianming');
if(!($this->MTest->insert_users($arr))){
echo "插入数据成功";
}else{
echo "插入数据失败";
}
}
//update data
public function update(){
$this->load->model('MTest','',TRUE);
$arr=array('username'=>'Helloworld22','password'=>'root','email'=>'895787704@qq.com','fullname'=>'luotianyecong');
if(!($this->MTest->update_users('Helloworld',$arr))){
echo "修改成功";
}else{
echo "修改失败";
}
}
//delete data
public function delete(){
$this->load->model('MTest','',TRUE);
$query=$this->MTest->delete_users(12);
if(!$query){
echo "删除成功";
}else{
echo "删除失败";
}
}
//select data
public function select(){
$this->load->library('table');
$this->load->model('MTest','',TRUE);
$arr=$this->MTest->select_users(3);
$userinformation=$this->table->generate($arr);
$data['userinfor']=$userinformation;
$this->load->view('template',$data);
}
}
?>
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view
temlate.php
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<?php echo $userinfor;?>
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output:
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id username password email fullname
3 Helloworld22 root 1111111@qq.com luotianyecong
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希望本文所述对大家基于CodeIgniter框架的PHP程序设计有所帮助。