[Resolved] Determining end function

[kilbey1]

I have set up a breadcrumb trail using the arguments for that page. There are a max 3 categories. I want to know how to determine that it's the last argument in the function so I can eliminate the seperators, ie:
Category 1 >> Category 2
vs.
Category 1 >> Category 2 >> Category 3

I am thinking the answer is func_num_args?

A function example:

head('Enterprise Solutions - Lawson Solutions','35','32','9');

(where 'title','maincat','subcat','subsubcat')

The code:

	if(func_get_arg(1) && func_get_arg(1) != '0') { // parent 
		$query = "select * from navigation WHERE id = ".func_get_arg(1)." AND active='y'"; 
		$result = mysql_query($query);
		while ($row = mysql_fetch_array($result)) {
			echo '<img src="images/nav/heads/'.$row['image'].'" alt="'.$row['title'].'"> >> ';
		}
	}
	if(func_get_arg(2) && func_get_arg(2) != '0') { // sub-category
		$query = "select * from navigation WHERE id = ".func_get_arg(2)." AND active='y'"; 
		$result = mysql_query($query);
		while ($row = mysql_fetch_array($result)) {
			echo $row['title']." >> ";
		}
	}
	if(func_get_arg(3) && func_get_arg(3) != '0') { // third sub-level
		$query = "select * from navigation WHERE id = ".func_get_arg(3)." AND active='y'"; 
		$result = mysql_query($query);
		while ($row = mysql_fetch_array($result)) {
			echo $row['title']." >> ";
		}
	}	

[kilbey1]

Actually, I think I just worked it out by adding:

			if (func_get_arg(1)) {
				echo " >> ";
			}