core-bundle/src/Translation/Translator.php
private function getFromGlobals(string $id): ?string
    {
        // Split the ID into chunks allowing escaped dots (\.) and backslashes (\\)
        preg_match_all('/(?:\\\\[\.\\\\]|[^\.])++/', $id, $matches);
        $parts = preg_replace('/\\\\([\.\\\\])/', '$1', $matches[0]);

        $item = &$GLOBALS['TL_LANG'];

        foreach ($parts as $part) {
            if (!isset($item[$part])) {
                return null;
            }

            $item = &$item[$part];
        }

        return $item;
    }
private function getFromGlobals(string $id): ?string
    {
        // Split the ID into chunks allowing escaped dots (\.) and backslashes (\\)
        preg_match_all('/(?:\\\\[\.\\\\]|[^\.])++/', $id, $matches);
        $parts = preg_replace('/\\\\([\.\\\\])/', '$1', $matches[0]);

        $item = &$GLOBALS['TL_LANG'];

        foreach ($parts as $part) {
            if (!isset($item[$part])) {
                return null;
            }

            $item = &$item[$part];
        }

        return $item;
    }
Returns the labels from $GLOBALS['TL_LANG'] based on a message ID like "MSC.view".