https://github.com/fabpot-graveyard/twittee

A Dependency Injection Container that fits in a tweet
https://github.com/fabpot-graveyard/twittee

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A Dependency Injection Container that fits in a tweet

• Host: GitHub
• URL: https://github.com/fabpot-graveyard/twittee
• Owner: fabpot-graveyard
• Archived: true
• Created: 2009-04-03T07:29:02.000Z (over 15 years ago)
• Default Branch: master
• Last Pushed: 2016-11-10T01:39:01.000Z (about 8 years ago)
• Last Synced: 2024-04-14T17:03:19.403Z (7 months ago)
• Language: PHP
• Homepage: http://www.twittee.org/
• Size: 155 KB
• Stars: 134
• Watchers: 15
• Forks: 24
• Open Issues: 1
• Metadata Files:
  • Readme: README.markdown

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README

        
What is Twittee?

================

Twittee is the **smallest**, and still useful, Dependency Injection Container

in PHP; it is also probably one of the first public software to use the newest

anonymous functions support of **PHP 5.3**.

Packed in less than **140 characters**, it fits in a [tweet][1].

Despite its size, Twittee is a full-featured Dependency Injection Container

with support for object definitions, object injection and parameters.

Published in 2009 by [Fabien Potencier][2], Twittee is in the Public Domain.

Tweet me if you find a bug!

Usage

-----

Finding a simple example to demonstrate a Dependency Injection Container is

not an easy task. Instead of showing a classic "Hello World!" example, which

would have been too simple to demonstrate the power of Twittee, I have

converted the example I used to introduce the Symfony 2 Dependency Injection

Container on my [blog][3].

The following example shows how to create a Zend_Mail object that sends its

emails using a Gmail account:

    $c = new Container();

    

    // parameters

    $c->mailer_class = function () { return 'Zend_Mail'; };

    $c->mailer_username = function () { return 'fabien'; };

    $c->mailer_password = function () { return 'myPass'; };

    

    // objects / services

    $c->mailer_transport = function ($c) {

      return new Zend_Mail_Transport_Smtp(

        'smtp.gmail.com',

        array(

          'auth'     => 'login',

          'username' => $c->mailer_username,

          'password' => $c->mailer_password,

          'ssl'      => 'ssl',

          'port'     => 465,

        )

      );

    };

    $c->mailer = function ($c) {

      $obj = new $c->mailer_class();

      $obj->setDefaultTransport($c->mailer_transport);

      return $obj;

    };

    

    // get the mailer

    $mailer = $c->mailer;

Some explanations about the code are in order:

  * Parameters are defined by anonymous functions that return strings;

  * Objects/services are defined by anonymous functions that return object

    instances;

  * Links between objects and parameters access are done by accessing the

    container, which is passed to the anonymous function as an argument.

Looking for a "real" Dependency Injection Container for PHP?

------------------------------------------------------------

Try the [Symfony Service Container][4].

Do you like Twittee?

--------------------

If you like Twittee, you will also probably like [Twitto][5], the Web Framework

that fits in a tweet!

[1]: http://twitter.com/fabpot/status/1443952125

[2]: http://fabien.potencier.org/

[3]: http://fabien.potencier.org/article/12/do-you-need-a-dependency-injection-container

[4]: http://fabien.potencier.org/article/11/what-is-dependency-injection

[5]: http://twitto.org/