sfDependencyInjectionPlugin

It provides supporting the Symfony's DependencyInjection component in your older symfony (1.4) project with Composer.

How to use

Create the following composer.json in your symfony 1.4 project's root.

{
    "config": {
        "vendor-dir": "psr/vendor"
    },
    "autoload": {
        "psr-0": { "": "psr/lib" }
    },
    "require": {
        "symfony/config": "2.3.*",
        "symfony/yaml": "2.3.*",
        "symfony/dependency-injection": "2.3.*"
    }
}

Here, Composer would install some vendors into %SF_ROOT%/psr/vendor. Also, You can locate your PSR supported libraries to be auto-loaded in %SF_ROOT%/psr/lib.

Install the Composer and install some libraries.

$ curl -sS https://getcomposer.org/installer | php
$ php composer.phar install

Next, create your services.yml in %SF_ROOT%/config/services.yml something like:

parameters:
    your_name: 'Issei Murasawa'

services:
    issei_tester:
        class: Issei\Tester
        calls:
            - [setName, ["%your_name%"]]

Edit ProjectConfiguration to be enabled this plugins.

class ProjectConfiguration extends sfProjectConfiguration
{
  public function setup()
  {
    $this->enablePlugins('sfDependencyInjectionPlugin');
    ...

Everything is ready. Now, Your sfContext has installed Symfony's ServicecContainer, it is called and used as following in your code:

$container = sfContext::getInstance()->getContainer();

// Retrieve the Issei\Tester class which is stored your name "Issei Murasawa"
$tester = $container->get('issei_tester');