How to set the property binding to elements in the filter?

Question

1C-Bitrix

Good day!
How to set a filter for a component by property binding to an element?
Printed the arResult array, found the [CITY] array in it with the desired [VALUE] property, tried to write it like this:

$arrFilter = array("PROPERTY_CITY_VALUE"=>$userCityCode);

but apparently something is wrong.
Filter in component settings enabled

Answer 1

1. Specify the name of the filter in the component parameters. For example "arrFilter"
2. Write above the component

$GLOBALS["arrFilter"] = array();
$GLOBALS["arrFilter"]["PROPERTY_CITY"] = ИД_ЭЛЕМЕНТА;

Mustache.