<?php
/**
* Queasy PHP Framework - Configuration
*
* (c) Vitaly Demyanenko <vitaly_demyanenko@yahoo.com>
*
* For the full copyright and license information, please view the LICENSE file that was distributed with this source code.
*/
namespace queasy\config\loader;
/**
* Configuration loader abstraction
*/
abstract class AbstractLoader implements LoaderInterface
{
/**
* Class invokation method representing load()
*
* @return null|array Loaded configuration, null otherwise
*/
public function __invoke()
{
if ($this->check()) {
return $this->load();
}
}
/**
* Load and return an array containing configuration
*
* @return array Loaded configuration
*/
abstract public function load();
/**
* Check whether configuration is available and can be loaded
*
* @return boolean True if file can be read
*/
abstract public function check();
}
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