i am following a tutorial for a log in script, but what i don't understand is ow the array from the $config was passed to the $path. please pardon me if its like a novice questions , i have read about functions over again , but still did not get it.can anyone help
PHP Code:
class Config {
    public static function 
get($path null) {
$path) {
$config $GLOBALS['config'];
$path explode('/'$path);

$path as $bit) {
$config[$bit])) {
$config $config[$bit];