public function equals(Scope $that)
{
$thisScope = $this->toArray();
$thatScope = $that->toArray();
foreach ($thisScope as $s) {
if (!in_array($s, $thatScope)) {
return false;
}
}
foreach ($thatScope as $s) {
if (!in_array($s, $thisScope)) {
return false;
}
}
return true;
}