Automatically Generated, be sure to be very precise on tabs and spaces.

Replace this:

	}else{ $count_all = count($all_news); }

With:

// Author Filter v1.0 - changeblock - Old
  // 	}else{ $count_all = count($all_news); }
// Author Filter v1.0 - changeblock - New
	} else {
		if (isset($author)) {
		    foreach($all_news as $news_line){
				$news_arr = explode("|", $news_line);
				if (in_array($news_arr[1], explode(",", $author))) {
					$count_all++;
				}
			}
		} else {
			$count_all = count($all_news);
		}
	}
// Author Filter v1.0 - End changeblock

Automatically Generated, be sure to be very precise on tabs and spaces.

Add this:

// Author Filter v1.0 - addblock
if (isset($author) and
		!in_array($news_arr[1], explode(",", $author))) {
	continue;
}
// Author Filter v1.0 - End addblock

Between:

			$news_arr = explode("|", $news_line);

And:

			if($requested_cats and $requested_cats[$news_arr[6]] == TRUE){ $count_all ++; }

Automatically Generated, be sure to be very precise on tabs and spaces.

Add this:

// Author Filter v1.0 - addblock
if (isset($author) and
		!in_array($news_arr[1], explode(",", $author))) {
	continue;
}
// Author Filter v1.0 - End addblock

Between:

		if($category and $requested_cats[$news_arr[6]] != TRUE){ continue; }

And:

        if(isset($start_from) and $start_from != ""){

You can now use something like the following in your include code:

$author = "Author1,Author2" ;