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PHTML

<?php
// Some useful functions
use Engelsystem\Config\Config;
/**
* Get or set config values
*
* @param string|array $key
* @param mixed $default
* @return mixed|Config
*/
function config($key = null, $default = null)
{
if (empty($key)) {
return Config::getInstance();
}
if (is_array($key)) {
Config::getInstance()->set($key);
}
return Config::getInstance()->get($key, $default);
}