name : ConfigurationInterface.php <?php declare(strict_types=1); /* * This file is part of the league/config package. * * (c) Colin O'Dell <colinodell@gmail.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace League\Config; use League\Config\Exception\UnknownOptionException; use League\Config\Exception\ValidationException; /** * Interface for reading configuration values */ interface ConfigurationInterface { /** * @param string $key Configuration option path/key * * @psalm-param non-empty-string $key * * @return mixed * * @throws ValidationException if the schema failed to validate the given input * @throws UnknownOptionException if the requested key does not exist or is malformed */ public function get(string $key); /** * @param string $key Configuration option path/key * * @psalm-param non-empty-string $key * * @return bool Whether the given option exists * * @throws ValidationException if the schema failed to validate the given input */ public function exists(string $key): bool; }