README.md

RegEx Dependency Container

Small, configurable service locator/DI container with possibility to describe keys as regular expressions. The component can be used as a Router too.

The package is:

• compliant to PSR-11.
• follow the PSR-4 and PSR-12
• works on PHP 7.2+.

Simple case

$configuration = new Collection(
    new Item('key', 'value'),
);

$container = new Container($configuration);
$value = $container->get('key');

var_dump:
  string(5) "value"

Pattern case

$configuration = new Collection(
    new Pattern('examplePattern', '/Example\/.*?$/i', 'SomeValue'),
);

$container = new Container($configuration);
$value = $container->get('Example/Something');

var_dump:
  string(9) "SomeValue"

Value as callback

$configuration = new Collection(
    new Pattern('examplePattern', '/Example\/(?P<special>.*?)$/i', function ($dependency, $match) {
        return $match;
    }),
);

$container = new Container($configuration);
$keyValue = $container->get('Example/Something');

var_dump:
  array(3) {
    [0] => string(17) "Example/Something"
    'special' => string(9) "Something"
    [1] => string(9) "Something"
  }

Two arguments is sent to callbacks:

• Container $dependency - current instance of container
• array $match - array with match results: the match response is provided: ['Controller/SomeName', 'SomeName']

Service registry

Objects returned by callbacks are not cached by default, but they can be, if wrapped as a Service.

$configuration = new Collection(
    new Item('someKey', function (Container $dependency) {
        return new Service(new \stdClass());
    })
);