Codeigniter注册登录代码示例
本示例Codeigniter注册登录代码源自一个codeigniter的项目，现分享下~
由于使用了ActiveRecord类，一般数据库操作只有两层，即是C和V
controllers/login.php文件：
<?php
classLoginextendsCI_Controller{
private$pass='';
publicfunction__construct(){
parent::__construct();
$this->load->helper(array(
'form',
'url'
));
$this->load->library('session');
}
publicfunctionindex(){
$this->load->view('login');
}
publicfunctionformsubmit(){
$this->load->library('form_validation');
$this->form_validation->set_rules('username','Username','required');
$this->form_validation->set_rules('password','Password','required');
if($this->form_validation->run()==FALSE){
$this->load->view('login');
}else{
if(isset($_POST['submit'])&&!empty($_POST['submit'])){
$data=array(
'user'=>$_POST['username'],
'pass'=>md5($_POST['password'])
);
$newdata=array(
'username' => $data['user'],
'userip' =>$_SERVER['REMOTE_ADDR'],
'luptime' =>time()
);
if($_POST['submit']=='login'){
$query=$this->db->get_where('uc_user',array(
'user'=>$data['user']
),1,0);
foreach($query->result()as$row){
$pass=$row->pass;
}
if($pass==$data['pass']){
$this->session->set_userdata($newdata);
$this->load->view('usercenter',$data);
}
}elseif($_POST['submit']=='register'){
$this->session->set_userdata($newdata);
$this->db->insert('uc_user',$data);
$this->load->view('usercenter',$data);
}else{
$this->session->sess_destroy();
$this->load->view('login');
}
}
}
}
}
views/login.php文件：
<html>
<?phpechovalidation_errors();?>
<?phpechoform_open('login/formsubmit');?>
<table>
<tr>
<td>用户名</td>
<td><inputtype="text"name="username"></td>
</tr>
<tr>
<td>密码</td>
<td><inputtype="password"name="password"></td>
</tr>
<tr>
<td>
<inputtype="submit"name="submit"value="login">
</td>
<td>
<inputtype="submit"name="submit"value="register">
</td>
</tr>
</table>
</form>
</html>
sql语句：
uc_user：
CREATETABLE`uc_user`(
`id`int(11)unsignedzerofillNOTNULLAUTO_INCREMENT,
`user`varchar(20)NOTNULL,
`pass`char(32)NOTNULL,
`role`enum('root','normal')NOTNULLDEFAULT'root',
`del`decimal(1,0)NOTNULLDEFAULT'0',
PRIMARYKEY(`id`)
)ENGINE=InnoDBAUTO_INCREMENT=5DEFAULTCHARSET=latin1