models/classes/runner/config/QtiRunnerConfig.php
public function getConfigValue($name)
    {
        $config = $this->getConfig();

        $path = explode('.', (string)$name);
        foreach ($path as $entry) {
            if (isset($config[$entry])) {
                $config =& $config[$entry];
            } else {
                return null;
            }
        }

        return $config;
    }
public function getConfigValue($name)
    {
        $config = $this->getConfig();

        $path = explode('.', (string)$name);
        foreach ($path as $entry) {
            if (isset($config[$entry])) {
                $config =& $config[$entry];
            } else {
                return null;
            }
        }

        return $config;
    }
Returns the value of a config entry.
The name can be a namespace, each name being separated by a dot, like: 'itemCaching.enabled'
@param string $name
@return mixed