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<?php
/**
* This file is part of the league/oauth2-client library
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @copyright Copyright (c) Alex Bilbie <hello@alexbilbie.com>
* @license http://opensource.org/licenses/MIT MIT
* @link http://thephpleague.com/oauth2-client/ Documentation
* @link https://packagist.org/packages/league/oauth2-client Packagist
* @link https://github.com/thephpleague/oauth2-client GitHub
*/
namespace League\OAuth2\Client\Tool;
/**
* Provides generic array navigation tools.
*/
trait ArrayAccessorTrait
{
/**
* Returns a value by key using dot notation.
*
* @param array $data
* @param string $key
* @param mixed|null $default
* @return mixed
*/
private function getValueByKey(array $data, $key, $default = null)
{
if (!is_string($key) || empty($key) || !count($data)) {
return $default;
}
if (strpos($key, '.') !== false) {
$keys = explode('.', $key);
foreach ($keys as $innerKey) {
if (!is_array($data) || !array_key_exists($innerKey, $data)) {
return $default;
}
$data = $data[$innerKey];
}
return $data;
}
return array_key_exists($key, $data) ? $data[$key] : $default;
}
}