CREATE LOGIN FORM USING CODEIGNITER FRAMEWORK
CREATE LOGIN FORM IN CODEIGNITER
Date :03/04/2019
In this article, we will help you in creating a simple login form using codeigniter framework.
Pre-requesties
we have to create database and table. Firstly, create database and name it as ‘form’. similarly, create a table named ‘register’.
Database Config Settings
In order to connect with the database, the below instructions must be followed.
The file is located at application/config/database.php.
$db['default'] = array( 'dsn' => '', 'hostname' => 'localhost', 'username' => 'root', 'password' => '', 'database' => 'form', 'dbdriver' => 'mysqli', 'dbprefix' => '', 'pconnect' => FALSE, 'db_debug' => (ENVIRONMENT !== 'production'), 'cache_on' => FALSE, 'cachedir' => '', 'char_set' => 'utf8', 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'encrypt' => FALSE, 'compress' => FALSE, 'stricton' => FALSE, 'failover' => array(), 'save_queries' => TRUE );
Controller (application/controllers/Welcome.php)
Controller is a process which get the input request from user, communicates with Model and then loads appropriate Views file.
In the below Controller class, we have functions for different tasks.
=>load_login()- This function load the login page.
=>login_validate()-Fetch the data and pass the values to model.
public function load_login()
{
$this->load->view('login.php');
}
public function login_validate()
{
$this->load->library('form_validation');
$this->form_validation->set_rules('firstname', 'first_name', 'required');
$this->form_validation->set_rules('password', 'password', 'required');
if ($this->form_validation->run())
{
$username=$this->input->post('firstname');
$password=$this->input->post('password');
$this->load->model('Insert_model');
if($var1=$this->Insert_model->check_login($username,$password))
{
echo "logged in successfully";
}
else
{
$this->session->set_flashdata('error','Invalied username and password');
redirect('Welcome/load_login');
}
}
else
{
echo json_encode($this->form_validation->error_array());
$this->load->view('login.php');
}
}
Model (application/models/Insert_model.php)
To check the login,
check_login-> function fetches register item by it’s username and password
public function check_login($username,$password)
{
$this->db->where('first_name',$username);
$this->db->where('password',$password);
$query=$this->db->get('register');
if($query->num_rows()>0)
{
return $query->row();
}
else
{
return false;
}
}
Index View (application/views/login.php)
This view file is called by load_login() function of our Controller class.
<body>
<center>
<h5>Login Form</h5>
<form role="form" method="post" action="<?php echo site_url('Welcome/login_validate');?>">
<table>
<tr><td>user name</td><td><input type="text" name="firstname"></td><br></tr>
<tr><td>Password</td><td><input type="Password" name="password"></td><br></tr>
<tr><td><input type = "submit" name="submit"/></td></tr>
</table>
</form>
</center>
Conclusion:
If you enter the correct login details it will display the message like “logged in successfully”. Otherwise it will show as “Invalid username and password”. That’s it.
Thanks for using pheonixsolutions.
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