Codeigniter Form validation problem

Please please please can someone help me

$this->load->library('form_validation');
  $this->load->helper('cookie');

  $data = array();


  if($_POST) { 
   // Set validation rules including additional validation for 开发者_运维百科uniqueness
   $this->form_validation->set_rules('yourname', 'Your Name', 'trim|required');
   $this->form_validation->set_rules('youremail', 'Your Email', 'trim|required|valid_email');
   $this->form_validation->set_rules('friendname', 'Friends Name', 'trim|required');
   $this->form_validation->set_rules('friendemail', 'Friends Email', 'trim|required|valid_email');

   // Run the validation and take action
   if($this->form_validation->run()) { 
    echo 'valid;
   }
  }
  else{
   echo 'problem';
  }

Form validation is coming back with no errors can cany one see why?

---

Is it actually echoing 'valid'? (you're missing an apostrophe there, btw)

The code you show will only echo 'problem' when $_POST is false, not when validation fails. Without knowing more, it may be as simple as:

// Run the validation and take action
if($this->form_validation->run()) { 
 echo('valid');
} else {
 echo('invalid');
}

---

Try like this without checking if $_POST is set - not really needed:

//validation rules here
//
if ($this->form_validation->run() == TRUE) {
     //do whatever that shall be run on succeed
} else {
     $this->load->view('form'); //load the form
}

Read more about the controller part here