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https://github.com/chipslays/container

📦 Yet another dependency injection container implementation with PSR-11 compliant for PHP 8.
https://github.com/chipslays/container

container di-container php-container php-di php-di-container

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📦 Yet another dependency injection container implementation with PSR-11 compliant for PHP 8.

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# 📦 DI Container

Yet another implementation of dependency injection container with PSR-11 compliant for PHP >8.0.

## Installation

```bash
composer require please/container
```

## Basic usage

This example always returns a new instance of `Mailer`.

```php
use Please\Container\Container;
use Please\Container\Support\Getter;

$container = new Container;

$container->bind(Mailer::class, function (Getter $get) {
return new Mailer::($get('user'), $get('password', 'qwerty')); // qwerty - default value
});

/** @var Mailer */
$mailer = $container->get(Mailer::class, [
'user' => 'admin',
// and password `qwerty` (default value)
]);
```

This example always return a same time.

```php
use Please\Container\Container;

$container = new Container;

$container->singleton('random', fn () => rand());

echo $container->get('random'); // 1234567890
echo $container->get('random'); // 1234567890
```

## Examples

You can find usage examples [here](/examples).

## Documentation

You can bind any abstract aliases.

```php
use Please\Container\Container;

$container = new Container;

$container->bind(Foo::class);
$container->get(Foo::class); // ok
$container->get('foo'); // error

// if you pass a class string
// it is also automatically bind as `Foo::class`
$container->bind('foo', Foo::class);
$container->get(Foo::class); // ok
$container->get('foo'); // ok

// array of aliases
$container->bind([Foo::class, 'foo', 'another-foo-alias'], Foo::class);
$container->get(Foo::class); // ok
$container->get('foo'); // ok
$container->get('another-foo-alias'); // ok
```

You can bind any primitive data types.

```php
$container->bind('foo', 'bar');
$container->bind('foo', 1337);
$container->bind('foo', 13.37);
$container->bind('foo', true || false);
$container->bind('foo', ['bar', 'baz']);
$container->bind('foo', new stdClass);
$container->bind('foo', fopen('php://stdout', 'r'));

$container->bind('baz', null);
$container->get('baz') // returns `baz`
```

Generates a singleton instance of a class.

> Singleton method always returns same value or instance like typical singleton pattern.

```php
$container->singleton('timestamp', fn () => time());

// or use bind class and `shared` parameter
$container->bind('timestamp', fn () => time(), shared: true);
```

Check if the container has a binding or instance for the given abstract.

```php
$container->bind('foo', 'bar');
$container->has('foo'); // true
$container->has('baz'); // false
```

## Singleton Pattern

If you really need to, you can use the container as a singleton.

```php
use Please\Container\Container as BaseContainer;
use Please\Container\Support\Traits\Singleton;

class Container extends BaseContainer
{
use Singleton;
}

...

$container = Container::getInstance();

...
```

You can also check singleton example [here](/examples/singleton.php).

## License
Open-sourced software licensed under the [MIT license](https://opensource.org/license/mit/).