class Registry
{
/**
* Returns the connection
*/
public static function getConnection()
{
return new Connection(array("host" => "localhost", "username" => "root", "password" => "secret", "dbname" => "invo"));
}
}
class SomeComponent
{
protected $_connection;
/**
* Sets the connection externally
*/
public function setConnection($connection)
{
$this->_connection = $connection;
}
public function someDbTask()
{
$connection = $this->_connection;
// ...
}
}
$some = new SomeComponent();
//Pass the connection defined in the registry
$some->setConnection(Registry::getConnection());
$some->someDbTask();
<?php //Create the dependencies or retrieve them from the registry $connection = new Connection(); $session = new Session(); $fileSystem = new FileSystem(); $filter = new Filter(); $selector = new Selector(); //Pass them as constructor parameters $some = new SomeComponent($connection, $session, $fileSystem, $filter, $selector); // ... or using setters $some->setConnection($connection); $some->setSession($session); $some->setFileSystem($fileSystem); $some->setFilter($filter); $some->setSelector($selector);
