function remove(&$obj, $expr)
{
if (($expr = JsonStore::_normalizedFirst($obj, $expr)) !== false) {
$o =& $obj;
$keys = preg_split("/([\"'])?\\]\\[([\"'])?/", preg_replace(array("/^\\\$\\[[\"']?/", "/[\"']?\\]\$/"), "", $expr));
for ($i = 0; $i < count($keys) - 1; $i++) {
$o =& $o[$keys[$i]];
}
unset($o[$keys[$i]]);
return true;
}
return false;
}
