How to Create Custom Library into CodeIgniter?

1
(No Transcript)
2
How to Create Custom Library into CodeIgniter?

• Elsner Technologies

3
How to Create Custom Library into CodeIgniter?

• Nowadays, there are many readymade classes
  available for the payment gateway, pdf
  generation, some third party API. So lets see
  how to integrate these classes to codeigniter and
  use it like a library. We can create our own
  class and use it as library.
• Codeigniter library means class file located into
  the classes application/libraries directory.
  You might have to remember a few things when
  creating a custom library in CI.
• It is a very simple process. Download the third
  party library and put it inside your library or
  third party folder and you can load this in the
  same way as you load your other libraries.

4
Checkout the following method

• 1. Filename of class and class name must be
  matching otherwise when you load the library, it
  will generate fatal error.
• Ex. Filename will be Paypal.php so class would
  be like this
• lt?php
• if ( ! defined(BASEPATH)) exit(No direct
  script access allowed)
• class Paypal
• public function sendpayment()
• // do your stuff
• ?gt

5

• 2. You can load this library into controller,
  model or view.
• Ex. this-gtload-gtlibrary(paypal)
• 3. To use default codeignitor functionality like
  built in libraries, you have to get instance of
  CI and then use all database and other
  functionalities.
• Ex.
• function Authex()
• CI get_instance()
• //load libraries
• CI-gtload-gtdatabase()
• CI-gtload-gtlibrary(session)

6

• 4. To pass the parameter to constructor or
  intialization with class we can pass with load
  libarary.
• Ex.
• arrTemp array(authkeygtXXXX)
• this-gtload-gtlibrary(Paypal, arrTemp)
• class Paypal
• public function __construct(arr)
• // put your functionality here.

7

• 5. To extend the native libraries, some things
  regarding the syntax and parent class extendsion
  are very useful which are mentioned here. You can
  replace native libraries.
• library name must be start with MY_
• Class must extend parent class
• Add subclass_prefix to config file
• Ex. configsubclass_prefix MY_
• If you want to check the all the user logins, go
  through our custom controller first and then
  particular controller so we can extend
  CI_controller like mentioned in the below sample
  class.
• class MY_Controller extends CI_Controller
• function __construct(data)
• parent__construct()
• this-gtdata array()
• user this-gtsession-gtuserdata(current_user)
• if (!user)
• redirect(login)
• else

8
Contact us

• Media Contact
• Company name Elsner Technologies Pvt. Ltd
• Website https//www.elsner.com/
• Email sales_at_elsner.com
• Facebook https//www.facebook.com/ElsnerTechnolo
  giesPvtLtd
• Twitter https//twitter.com/Elsnertech