Creating forms in CodeIgniter involves generating HTML form elements and handling form submissions. Here's a step-by-step guide to creating forms in CodeIgniter:
1. Create a View File for the Form:
- Create a new PHP file in the
application/viewsdirectory to represent your form. - Define the HTML markup for the form elements inside the view file.
Example view file (my_form.php):
<!DOCTYPE html>
<html>
<head>
<title>My Form</title>
</head>
<body>
<h2>My Form</h2>
<?php echo form_open('form/process'); ?>
<label for="username">Username:</label>
<input type="text" name="username" id="username" required>
<label for="email">Email:</label>
<input type="email" name="email" id="email" required>
<input type="submit" value="Submit">
<?php echo form_close(); ?>
</body>
</html>
2. Load the Form View in a Controller:
- Create a controller method to load the form view.
- Load the form view using the
$this->load->view()method.
Example controller method:
public function index() {
$this->load->view('my_form');
}
3. Process Form Submissions:
- Create another controller method to handle form submissions.
- Use CodeIgniter's form validation library to validate form input.
- Process the form data accordingly (e.g., save to database, send email).
Example controller method to process form submissions:
public function process() {
// Load form validation library
$this->load->library('form_validation');
// Set validation rules
$this->form_validation->set_rules('username', 'Username', 'required');
$this->form_validation->set_rules('email', 'Email', 'required|valid_email');
if ($this->form_validation->run() == FALSE) {
// Form validation failed, reload the form
$this->load->view('my_form');
} else {
// Form validation passed, process the form data
$username = $this->input->post('username');
$email = $this->input->post('email');
// Process the form data (e.g., save to database, send email)
// Redirect or show success message
}
}
4. Display Validation Errors (Optional):
- If form validation fails, display validation errors next to the form fields.
Example of displaying validation errors in the view file:
<?php echo validation_errors(); ?>
Comments