Online PHP editor | refs for fQsao

<?php interface Mailer {} class SwiftAdapter implements Mailer {} class ZendAdapter implements Mailer {} class NativeAdapter implements Mailer {} class MailerFactory { /** * Select the best available mailer * * @return Mailer */ public function select() { if (class_exists('SwiftMailer')) { // or whatever, cba looking up actual class names return $this->createSwiftAdapter(); } else if (class_exists('Zend_Mail')) { return $this->createZendAdapter(); } else { return $this->createNativeAdapter(); } } /** * Explicitly create a Swift adapter * * @return SwiftAdapter */ public function createSwiftAdapter() { return new SwiftAdapter; // can deal with args here if needed } /** * Explicitly create a Zend adapter * * @return ZendAdapter */ public function createZendAdapter() { return new ZendAdapter; // can deal with args here if needed } /** * Explicitly create a native adapter * * @return NativeAdapter */ public function createNativeAdapter() { return new NativeAdapter; // can deal with args here if needed } }