In order to implement form validation you'll need three things:
- A View file containing a form.
- A View file containing a "success" message to be displayed upon successful submission.
- A controller function to receive and process the submitted data.
The Form
Using a text editor, create a form called myform.php. In it, place this code and save it to your applications/views/ folder:
<html>
<head>
<title>My Form</title>
</head>
<body>
<?php echo validation_errors(); ?>
<?php echo form_open('form'); ?>
<h5>Username</h5>
<input type="text" name="username" value="" size="50" />
<h5>Password</h5>
<input type="text" name="password" value="" size="50" />
<h5>Password Confirm</h5>
<input type="text" name="passconf" value="" size="50" />
<h5>Email Address</h5>
<input type="text" name="email" value="" size="50" />
<div><input type="submit" value="Submit" /></div>
</form>
</body>
</html>
The Success Page
Using a text editor, create a form called formsuccess.php. In it, place this code and save it to your applications/views/ folder:
<html>
<head>
<title>My Form</title>
</head>
<body>
<h3>Your form was successfully submitted!</h3>
<p><?php echo anchor('form', 'Try it again!'); ?></p>
</body>
</html>
The Controller
Using a text editor, create a controller called form.php. In it, place this code and save it to your applications/controllers/ folder:
<?php
class Form extends CI_Controller {
function index()
{
$this->load->helper(array('form', 'url'));
$this->load->library('form_validation');
if ($this->form_validation->run() == FALSE)
{
$this->load->view('myform');
}
else
{
$this->load->view('formsuccess');
}
}
}
?>
Just try it!!
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