Codeigniter no data sent posted on form - php

Question

My login system suddenly stopped working, I can't fix it, I've been looking into it and it seems that the data doesn't get posted back but I can't find the problem.
This is my view:
<?php if(! is_null($err)) echo "<div class=\"alert alert-danger\">".$err."</div>";?>
<form class="form-signin" action="<?php echo site_url("user/validate"); ?>" method="post">
<h2 class="form-signin-heading">Please sign in</h2>
<label for="email" class="sr-only">Email address</label>
<input type="email" name="email" class="form-control" placeholder="Email address" required autofocus>
<br/>
<label for="password" class="sr-only">Password</label>
<input type="password" name="password" class="form-control" placeholder="Password" required>
<br/>
<button class="btn btn-lg btn-primary btn-block" name="submit" type="submit">Sign in</button>
</form>
</div>
This is my my validate function inside the user controller:
public function validate()
{
$email = $this->input->post('email');
$password = $this->input->post('password');
// Load the model
echo "$email and $password sent";
print_r($this->input->post());
exit();
$this->load->model('User_model');
// Validate user's login details
$result = $this->User_model->validate($email, $password);
// Now we verify the result
if($result == 0){
// If user did not validate, then show them login page again
$err = 'Invalid email and/or password.';
$this->login($err);
}else{
// If user did validate send him to homepage after setting the credentials
$this->session->set_userdata($result);
redirect(site_url("/index/index"));
}
}
the echo and the print_r show that no data is posted.
After some research I found out that the problem should be the .htaccess file, this is my current .htaccess:
RewriteEngine On
RewriteRule ^(application) - [F,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* index.php/$0 [PT,L]
But it's not working.

Answer 1

you have an exit(); in validate function comment it
try : if(!empty( $err ))
try : base_url("index.php/user/validate");
try : load model inside
public function __construct()
not inside of
public function validate()

Answer 2

<form class="form-signin" action="<?php echo site_url("user/validate"); ?>" method="post">
Change this to the following:
<form class='form-signin' action="<?php echo base_url();?>user/validate" method="post" name="user_from">
Also don't use the submit button name as 'submit'. Just use sbt or other name, id too...