validation errors not net to the flashdata in codeigniter - codeigniter

Question

I'm trying to set validation error to the my form using flashdata in codeigniter but i cannot see the error in a view here is my code of view section. I had already read other relative questions close to my this problem but i'm not found a solution!
<?php if($this->session->flashdata('errors')): ?>
<?php echo $this->session->flashdata('errors');?>
<?php endif; ?>
<?php $attributes = array('id'=>'admin_login','class'=>'form-horizontal'); ?>
<?php echo form_open('admin/login', $attributes); ?>
<div class="form-group">
<?php
$lbl = array('class'=>'col-sm-12 col-lg-12 col-md-12 col-xs-12 control-label');
echo form_label('Email','admin_login',$lbl); ?>
<div class="col-sm-12 col-lg-12 col-md-12 col-xs-12">
<?php $data = array('
class'=> 'form-control col-sm-12 col-lg-12 col-md-12 col-xs-12',
'name'=> 'email',
'placeholder'=>'Enter your email'
); ?>
<?php echo form_input($data); ?>
</div>
</div>
<div class="form-group">
<?php
echo form_label('Password','admin_login',$lbl); ?>
<div class="col-sm-12 col-lg-12 col-md-12 col-xs-12">
<?php $data = array('
class'=> 'form-control',
'name'=> 'password',
'placeholder'=>'Password'
); ?>
<?php echo form_password($data); ?>
</div>
</div>
<div class="form-group">
<div class="col-sm-12 col-lg-12 col-md-12 col-xs-12">
<?php $data = array('
class'=> 'btn btn-success btn-md center mt-2',
'name'=> 'submit',
'placeholder'=>'Password',
'value'=>'LOGIN',
'type'=>'submit'
); ?>
<center>
<?php echo form_submit($data); ?>
</center>
</div>
</div>
<?php echo form_close(); ?>
This is my controller part it is name of 'admin' method name is login
public function login(){
$this->form_validation->set_rules('email','Email','required');
$this->form_validation->set_rules('password','Password','required');
// check the form has any error (any miss of rules we set in above codes
if($this->form_validation->run() == FALSE){
$this->session->set_flashdata('errors',
validation_errors());
// $this->session->set_flashdata('name','Your message');
// $errors = validation_errors();
// $this->session->set_flashdata('form_error', $errors);
// $this->session->set_flashdata('name','Your message');
// $data = array('errors'=> validation_errors());
// set_userdata() is regular way to set session, it need manually unset, there for we use flashdata
// $this->session->set_flashdata($data);
}else{
echo "its all good";
}
}
i tried so many codes, i commented out what i used so far. I set in autoload section session library also $autoload['libraries'] = array('database','form_validation','session');
Please tell me what is the wrong here.

Answer 1

Please try with the below code.
public function login(){
$this->form_validation->set_rules('email','Email','required');
$this->form_validation->set_rules('password','Password','required');
if($this->form_validation->run() == true){
echo "its all good";
}else{
$this->session->set_flashdata('errors', validation_errors());
}
$this->load->view('Your View Page');
}