PHP code example of thamtech / yii2-di

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

thamtech / yii2-di example snippets

use yii\db\Connection;

// returns Yii::$app->db
$db = \thamtech\di\Instance::ensure('db', [
    Connection::class,
    \yii\redis\Connection::class,
]);

// returns an instance of Connection using the given configuration.
//     * the first type listed is used as the 'class' parameter when it isn't
//       specified in the reference array
$db = \thamtech\di\Instance::ensureAny([
    'dsn' => 'sqlite:path/to/my.db'
], [
    Connection::class,
    \yii\redis\Connection::class,
])

class ExpensiveInstanceProvider implements \thamtech\di\Provider
{
    public function get()
    {
        // instantiate $object
        // ...
        return $objectInstance;
    }
}

class DependendClass
{
    private $provider;
    public function __construct(ExpensiveInstanceProvider $provider)
    {
        $this->provider = $provider;
    }
    
    public function fooBar()
    {
        $objectInstance = $provider->get();
    }
}

namespace example\package;
class FooCacheProvider extends \thamtech\di\InstanceProvider {}
class BarCacheProvider extends \thamtech\di\InstanceProvider {}

class FooCacheUtil
{
    private $cache;
    // dependency injection provides a FooCacheProvider
    public function __construct(FooCacheProvider $cacheProvider)
    {
        $this->cache = $cacheProvider->get();
    }
}

class BarCacheUtil
{
    private $cache;
    // dependency injection provides a BarCacheProvider
    public function __construct(BarCacheProvider $cacheProvider)
    {
        $this->cache = $cacheProvider->get();
    }
}

// application's container configuration
'container' => [
    'singletons' => [
        'example\package\FooCache:::provided' => [
            'class' => 'yii\caching\ArrayCache',
        ],
        'example\package\BarCache:::provided' => [
            'class' => 'yii\caching\DbCache',
        ],
    ],
],

namespace example\package;
class FooCacheProvider extends \thamtech\di\InstanceProvider
{
    public $class = 'yii\caching\ArrayCache';
    
    public $config = [
        'serializer' => false,
        'defaultDuration' => 3600,
    ];
}

namespace example\package;
class FooCacheProvider extends \thamtech\di\InstanceProvider
{
    public $ensureTypes = [
        'yii\caching\ArrayCache',
        'yii\caching\FileCache',
    ];
}

'container' => [
    'singletons' => [
        'example\package\FooCache:::provided' => [
            'class' => 'yii\caching\DbCache',
        ],
    ],
],

$fooCacheProvider = new FooCacheProvider();
$fooCacheProvider->get(); // will throw an InvalidConfigException