"Multiple" PHP return function?

Hello, please note I am beginner at PHP.

I have a function that I would like to return, instead of echo it (echo breaks code at certain point). However, I don't have a clue hot to build and output that as I have a foreach there. Pls. see an example, you will understand it easily.

function list_articles($condition, $number = 3, $indentation = 3)
	{
	if ($condition == "home")
		{
		$sql = "SELECT Date,Time,Article FROM Articles WHERE PUBLISHED = 1 ORDER BY Date DESC, Time DESC LIMIT " . $number;
		}
		//
	else if ($condition == "archive")
		{
		$sql = "SELECT Date,Time,Article FROM Articles WHERE PUBLISHED = 1 ORDER BY Date DESC, Time DESC";
		}
		//
	else if ($condition == "admin")
		{
		$sql = "SELECT Date,Time,Article FROM Articles ORDER BY Date DESC, Time DESC";
		}
		//
	else
		{
		return FALSE;
		}
	//
	//DB fetch, returns $result
	//
	$result = retrieve_from_database($sql); //Add another control here
	//
	// Print list
	//
	
	echo str_repeat("\t", $indentation) . "<ul>\n";
	foreach($result as $value)
		{
		echo str_repeat("\t", $indentation) . "\t<li>" . datetime_converter($value["Date"]) . " - " . $value["Article"] . "</li>\n";
		}
	echo str_repeat("\t", $indentation) . "</ul>";
	}

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