Ok So I was trying to understand this function:
zen_parse_search_string
which parses search string into indivual objects
It accepts two parameters
zen_parse_search_string($search_str = '', &$objects)
I am not able to understand what second parameter is

When it is getting called in header_php.php, it is getting called as:
zen_parse_search_string(stripslashes($_GET['keyword']), $search_keywords))
although I can understand how first parameter is coming, but I am not able to understand from where the value of $search_keywords is coming from

I tried the search and got this url:
http://localhost/zencart/index.php?m...word=microsoft

So value of $_GET['keyword']='microsoft' but what is &$objects?
Please explain with an example
Thanks