CodeIgniter-Flashdata

Introduction

CodeIgniter-Flashdata is a library that provides a way to easily manage flashdata (temporary data that are kept for one page request) in CodeIgniter 3 applications.

Features

• Easy to use library for setting, getting, and deleting flashdata in CodeIgniter 3.
• Can be used for showing success messages, error messages, or any other type of temporary message to the user.
• Uses CodeIgniter's built-in Session library to store flashdata.
• Requires no additional configuration to use.

Installation

1. Download the Flashdata.php file from the GitHub repository.
2. Copy the file to your CodeIgniter application's application/libraries directory.
3. Load the library in your controller or autoload it in your CodeIgniter configuration file.

Code to load the library in your controller:

$this->load->library('flashdata');

Code to autoload the library:

$autoload['libraries'] = array('flashdata');

Usage

Setting Flashdata

To set flashdata, use the set_flashdata() method on the Flashdata library.

$this->flashdata->set_flashdata('key', 'value');

You can also set multiple flashdata using an array:

$flashdata = array(
   'success' => 'Your account has been created!',
   'error'   => 'Unable to create account. Please try again later.'
);

$this->flashdata->set_flashdata($flashdata);

Getting Flashdata

To get flashdata, use the flashdata() method on the Flashdata library.

$data = $this->flashdata->flashdata('key');

If the flashdata does not exist, the method will return FALSE.

You can also get all flashdata as an array:

$data = $this->flashdata->flashdata();

Deleting Flashdata

To delete flashdata, use the unset_flashdata() method on the Flashdata library.

$this->flashdata->unset_flashdata('key');

You can also unset all flashdata:

$this->flashdata->unset_flashdata();

Example

Controller

<?php
class Example extends CI_Controller {

   public function index() {
      $this->load->library('flashdata');

      $success_message = 'Your account has been created!';
      $error_message   = 'Unable to create account. Please try again later.';

      if ($this->create_account()) {
         $this->flashdata->set_flashdata('success', $success_message);
      } else {
         $this->flashdata->set_flashdata('error', $error_message);
      }

      redirect('home');
   }

   private function create_account() {
      // Code to create user account
      return TRUE;
   }

}

View

<?php
if ($this->flashdata->flashdata('success')) {
   echo '<div class="success">' . $this->flashdata->flashdata('success') . '</div>';
} elseif ($this->flashdata->flashdata('error')) {
   echo '<div class="error">' . $this->flashdata->flashdata('error') . '</div>';
}
?>

Conclusion

CodeIgniter-Flashdata is a simple and easy-to-use library for managing flashdata in your CodeIgniter 3 applications. It can help you simplify your code and make your applications more user-friendly by displaying temporary messages to your users.