Keeping the entered value at, whether the form is submitted using codeigniter

Question

This is my login form:

     <div class="form-container">
        <h1 style="text-align:left">Login Here!</h1><br>
        <form class="form-horizontal" action="<?php echo base_url(); ?>index.php/User_Authentication_Controller/login_user" method="POST">
          <div class="error_msg1"></div>
          <input autofocus="autofocus" type="text" name="txt_login_username" class="form-control" placeholder="Username.."/><div class="error_msg2"></div>
          <input type="password" name="txt_login_password" class="form-control" placeholder="Password.." /><div class="error_msg3"></div>
          <center><button class="btn btn-info" type="submit">Login</button><br/><br/>
          <a href="<?php echo base_url();?>index.php/Pages_Controller/show_forgotpassword">Forgot Password?</a></center>
        </form>
    </div>

This is my controller:

public function login_user(){
    $username = $this->input->post('txt_login_username');
    $password = md5($this->input->post('txt_login_password'));
    $result=$this->LogIn_Model->login($username,$password);

    if (!empty($username) && !empty($password)) {
    if($result!=null){
        $_SESSION["username"] = $username;
        $_SESSION["id"] = $result["0"]["Account_no"];
        $_SESSION["Usertype"] = $result["0"]["Usertype"];
        if($result["0"]["Status"] == 1){
            if($result["0"]["Usertype"] == 0){
                redirect('User_Authentication_Controller');
            }
            else if($result["0"]["Usertype"] == 1){
                redirect('Pages_Controller/show_adminpage/');           
            }
        }
        else if($result["0"]["Status"] == 0){
            redirect('User_Authentication_Controller');             
        }
    }
    else{
        redirect('User_Authentication_Controller');
    }
   }
   else{
        redirect('User_Authentication_Controller'); 
   } 

}

It really works!

Now my question is:

As you can see else if($result["0"]["Status"] == 0){}, all I want is that after I submit the page, it will redirect back to the login, and I want

   <div class="error_msg1"></div>

will display an error message: "Your account has been deactivated by the administrator." And if he enters the username, he will remain motionless when he introduces him! how will i do this If he enters the username: Michael and Inputs the wrong password, I want the username: Michael to stay in place! How to do this after submitting the form?

Answer 1

1

AJAX form. js ajax , . js , , . .

2

, $_SESSION['ShowErrorMsg1']=true login_user, php, :

.

if(isset($_SESSION['ShowErrorMsg1']) && $_SESSION['ShowErrorMsg1']==true){
    echo '<div class="error_msg1"></div>';
}

.

UPDATE:

, , , php php $_SESSION. $msg_content, , $_SESSION['somekey']=$msg_content; php. php $_SESSION['somekey'], $msg_content.

Answer 2

set_userdata : :

else if($result["0"]["Status"] == 0){
$this->session->set_flashdata('error_msg1','Some Error Msg!'); 
}

:

<?php if($this->session->flashdata('error_msg1')) : ?>
<div class="alert alert-success">
    <span class="alert-rr">
        <i class="fa fa-check-circle" aria-hidden="true"></i>
    </span>
    <span class="alert-msg">
        <?php echo $this->session->flashdata('error_msg1'); ?>
    </span>
</div>
<?php endif; ?>