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Home » Codeigniter »
User Login
User.php
<?php
class User extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->database();
$this->load->helper('url');
}
public function login()
{
if($this->input->post('login'))
{
$email=$this->input->post('email');
$password=$this->input->post('pass');
//$password = md5($this->input->post('password'));
//$password = sha1($this->input->post('password'));
$que=$this->db->query("select * from user_login where email='$email' and pass='$password'");
$row = $que->num_rows();
if(count($row)>0)
{
redirect('User/dashboard');
}
else
{
$data['error']="<h3 style='color:red'>Invalid userid or password !</h3>";
}
}
$this->load->view('login',@$data);
}
function dashboard()
{
$this->load->view('dashboard');
}
}
?>
student_registration.php
<!DOCTYPE html>
<html>
<head>
<title>Login form</title>
</head>
<body>
<form method="post">
<table width="600" align="center" border="1" cellspacing="5" cellpadding="5">
<tr>
<td colspan="2"><?php echo @$error; ?></td>
</tr>
<tr>
<td>Enter Your Email </td>
<td><input type="text" name="email"/></td>
</tr>
<tr>
<td width="230">Enter Your Password </td>
<td width="329"><input type="password" name="pass"/></td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" name="login" value="Login"/></td>
</tr>
</table>
</form>
</body>
</html>
User Login With Server Side validation :-
file name : login_view
<div style="color:#FFF;"><?php echo validation_errors(); ?></div>
<p class='flashMsg flashSuccess' style="color:red;"> <?=$this->session->flashdata('msg')?> </p>
<form class="form-horizontal" role="form" action="<?php echo base_url();?>admin/login/logincheck" method="post" name="frmlogin" id="frmlogin">
<div class="form-group">
<div class="col-md-12">
<input type="text" name="uid" id="uid" class="form-control" placeholder="Username"/>
<span class="help-block" style="color:red;"><?php echo form_error('uid'); ?></span>
</div>
</div>
<div class="form-group">
<div class="col-md-12">
<input type="password" name="pass" id="pass" class="form-control" placeholder="Password"/>
<span class="help-block" style="color:red;"><?php echo form_error('pass'); ?></span>
</div>
</div>
<div class="form-group">
<div class="col-md-6">
<a href="#" class="btn btn-link btn-block" data-toggle="modal" data-target="#myModal">Forgot your password?</a>
</div>
<div class="col-md-6">
<button class="btn btn-info btn-block" type="submit" id="btn_login" name="btn_login" value="Signin">Log In</button>
<!-- <input class="btn btn-lg btn-login btn-block" type="button" id="btn_login" name="btn_login" value="Signin"> -->
</div>
</div>
</form>
Controller
file name : Login.php
<?php if (! defined('BASEPATH')) exit('No direct script access allowed');
class Login extends CI_Controller {
function __construct()
{
parent::__construct();
//$this->load->helper('form');
//$this->load->library('form_validation');
}
public function index()
{
$this->load->view('admin_views/login_view');
}
public function logincheck()
{
$this->form_validation->set_rules("uid", "User name", "trim|required");
$this->form_validation->set_rules('pass', 'User Password', 'required|trim|min_length[4]|max_length[10]');
if ($this->form_validation->run() == FALSE)
{
//validation fails
$this->load->view('admin_views/login_view');
}
else
{
if ($this->input->post('btn_login') == "Signin")
// if ($this->input->method() == "post")
{
$username = $this->input->post("uid");
$password = $this->input->post("pass");
// $password = md5($this->input->post("pass"));
// $password = sha1($this->input->post("pass"));
$usr_result = $this->Admin_model->get_user($username, $password);
if ($usr_result > 0)
{
$sessiondata = array(
'username' => $username,
'loginuser' => TRUE
);
$this->session->set_userdata($sessiondata);
redirect("admin/Dashboard");
}
else
{
$this->session->set_flashdata('msg', '<div class="alert alert-danger text-center">Invalid username and password!</div>');
redirect('admin/Login');
}
}
else
{
redirect('admin/login');
}
}
}// function login check end
}
Admin_model
file name :
public function get_user($username, $password)
{
$qry = "select * from admin_info where user_id='$username' and password = '$password'";
$result = $this->db->query($qry);
return $result->num_rows();
}
User login with ajax and jquery validation.
file name :
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.14.0/jquery.validate.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#btn_login").click(function(e){
//e.preventDefault();
$("#frmlogin").validate({
rules: {
uid: {
required: true,
//minlength: 3
},
pass: {
required: true,
//minlength: 3
}
},
messages: {
uid: {
required: "Please enter userid",
//minlength: "Your uid must be at least 3 characters"
},
pass: {
required: "Please enter password",
//minlength: "Your Password must bea at least 3 charachter"
}
}
});
var uname = $('#uid').val().trim();
var upass = $('#pass').val().trim();
if( uname != "" && upass != "" ){
$.ajax({
url:'<?php echo base_url();?>admin/login/logincheck',
type:'post',
data:{uid:uname,pass:upass},
success:function(response){
var msg = "";
if(response == 1){
window.location = '<?php echo base_url();?>admin/Dashboard';
}else{
msg = "Invalid User and Password!";
//msg = '<div class="alert alert-danger text-center">User Id And password doesnot match!</div>';
$("#errormessage").html(msg);
}
}
});
}
});
});
</script>
<body>
<div class="login-container">
<div class="login-box">
<div class="login-logo"></div>
<div class="login-body">
<div class="login-title"><strong>Welcome</strong>, Please login</div>
<div style="color:#FFF;"><?php echo validation_errors(); ?></div>
<div id="errormessage"></div>
<p class='flashMsg flashSuccess' style="color:red;"> <?=$this->session->flashdata('msg')?> </p>
<form class="form-horizontal" role="form" action="" method="post" name="frmlogin" id="frmlogin">
<div class="form-group">
<div class="col-md-12">
<input type="text" name="uid" id="uid" class="form-control" placeholder="Username"/>
<span class="help-block" style="color:red;"><?php echo form_error('uid'); ?></span>
</div>
</div>
<div class="form-group">
<div class="col-md-12">
<input type="password" name="pass" id="pass" class="form-control" placeholder="Password"/>
<span class="help-block" style="color:red;"><?php echo form_error('pass'); ?></span>
</div>
</div>
<div class="form-group">
<div class="col-md-6">
<a href="#" class="btn btn-link btn-block" data-toggle="modal" data-target="#myModal">Forgot your password?</a>
</div>
<div class="col-md-6">
<button class="btn btn-info btn-block" type="submit" id="btn_login" name="btn_login" value="Signin">Log In</button>
<!-- <input class="btn btn-lg btn-login btn-block" type="button" id="btn_login" name="btn_login" value="Signin"> -->
</div>
</div>
</form>
</div>
</div>
</div>
</body>
file name :
<?php if (! defined('BASEPATH')) exit('No direct script access allowed');
class Login extends CI_Controller {
function __construct()
{
parent::__construct();
//$this->load->helper('form');
//$this->load->library('form_validation');
}
public function index()
{
$this->load->view('admin_views/login_view');
}
public function logincheck()
{
$username = $this->input->post("uid");
$password = $this->input->post("pass");
$usr_result = $this->Admin_model->get_user($username, $password);
if ($usr_result > 0)
{
$sessiondata = array(
'username' => $username,
'loginuser' => TRUE
);
$this->session->set_userdata($sessiondata);
echo $usr_result;
exit;
}
else {
echo $usr_result;
exit;
}
}// function login check end
}
Admin_model
file name :
public function get_user($username, $password)
{
$qry = "select * from admin_info where user_id='$username' and password = '$password'";
$result = $this->db->query($qry);
return $result->num_rows();
}
md5 and sha1
file name :
$password = md5($this->input->post('password'));
$password = sha1($this->input->post('password'));
//$usr_result = $this->Admin_model->get_user($username, md5($password));
$usr_result = $this->Admin_model->get_user($username, sha1($password));
file name :