Codeigniter注册登录代码示例

(编辑：jimmy 日期: 2024/5/9 浏览：3 次 )

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 Active Record 类，一般数据库操作只有两层，即是C和V

controllers/login.php文件：

复制代码代码如下:<?php
class Login extends CI_Controller {
private $pass = '';
public function __construct() {
parent::__construct ();
$this->load->helper ( array (
    'form',
    'url'
) );
$this->load->library('session');
}
public function index() {
$this->load->view ( 'login' );
}
public function formsubmit() {
$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', $data );
     }
    } else if ($_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：

复制代码代码如下:<html>
<?php echo validation_errors(); ?>
<?php echo form_open('login/formsubmit'); ?>
<table>
<tr>
<td>用户名</td>
<td><input type="text" name="username"></td>
</tr>
<tr>
<td>密码</td>
<td><input type="password" name="password"></td>
</tr>
<tr>
<td>
<input type="submit" name="submit" value="login">
</td>
<td>
<input type="submit" name="submit" value="register">
</td>
</tr>
</table>
</form>
</html>

sql语句：

uc_user：复制代码代码如下: CREATE TABLE `uc_user` (
           `id` int(11) unsigned zerofill NOT NULL AUTO_INCREMENT,
           `user` varchar(20) NOT NULL,
           `pass` char(32) NOT NULL,
           `role` enum('root','normal') NOT NULL DEFAULT 'root',
           `del` decimal(1,0) NOT NULL DEFAULT '0',
           PRIMARY KEY (`id`)
         ) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=latin1

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