DesignPatternsPHP/DependencyInjection/Connection.php at master · monkeymonk/DesignPatternsPHP · GitHub

35 lines (31 loc) · 756 Bytes

<?php

namespace DesignPatterns\DependencyInjection;

/**

* Class Connection

class Connection

{

/**

* @var Configuration

protected $configuration;

/**

* here, Configuration gets injected and Connection will get all that it needs from Configuration

* without DI, the configuration would be created directly in Connection, which is not very good

* for testing and extending Connection

* @param Configuration $config

public function __construct(Configuration $config)

{

$this->configuration = $config;

}

/**

* connection using the injected config

public function connect()

{

$host = $this->configuration->getHost();

// ...

}

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