CIBlockPropertyElementAutoComplete::AddFilterFields

static function AddFilterFields($arProperty, $strHTMLControlName, &$arFilter, &$filtered)
{
	$filtered = false;
	$arFilterValues = array();

	if (isset($strHTMLControlName["FILTER_ID"]))
	{
		$filterOption = new BitrixMainUIFilterOptions($strHTMLControlName["FILTER_ID"]);
		$filterData = $filterOption->getFilter();
		if (!empty($filterData[$strHTMLControlName["VALUE"]]))
		{
			$arFilterValues = (is_array($filterData[$strHTMLControlName["VALUE"]]) ?
				$filterData[$strHTMLControlName["VALUE"]] : array($filterData[$strHTMLControlName["VALUE"]]));
		}
	}
	else
	{
		if (isset($_REQUEST[$strHTMLControlName["VALUE"]]) && (is_array($_REQUEST[$strHTMLControlName["VALUE"]]) ||
			(0 < (int)$_REQUEST[$strHTMLControlName["VALUE"]])))
		{
			$arFilterValues = (is_array($_REQUEST[$strHTMLControlName["VALUE"]]) ?
				$_REQUEST[$strHTMLControlName["VALUE"]] : array($_REQUEST[$strHTMLControlName["VALUE"]]));
		}
		elseif (isset($GLOBALS[$strHTMLControlName["VALUE"]]) && (is_array($GLOBALS[$strHTMLControlName["VALUE"]]) ||
			(0 < (int)$GLOBALS[$strHTMLControlName["VALUE"]])))
		{
			$arFilterValues = (is_array($GLOBALS[$strHTMLControlName["VALUE"]]) ?
				$GLOBALS[$strHTMLControlName["VALUE"]] : array($GLOBALS[$strHTMLControlName["VALUE"]]));
		}
	}

	foreach ($arFilterValues as $key => $value)
	{
		if ((int)($value) <= 0)
			unset($arFilterValues[$key]);
	}

	if (!empty($arFilterValues))
	{
		$arFilter["=PROPERTY_".$arProperty["ID"]] = $arFilterValues;
		$filtered = true;
	}
}