MyShaarli/application/config/ConfigIO.php

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<?php
/**
* Interface ConfigIO
*
* This describes how Config types should store their configuration.
*/
interface ConfigIO
{
/**
* Read configuration.
*
* @param string $filepath Config file absolute path.
*
* @return array All configuration in an array.
*/
public function read($filepath);
/**
* Write configuration.
*
* @param string $filepath Config file absolute path.
* @param array $conf All configuration in an array.
*/
public function write($filepath, $conf);
/**
* Get config file extension according to config type.
*
* @return string Config file extension.
*/
public function getExtension();
}