Remember if you are not a fan of wild labels hanging around you are free to use braces in this construct creating a slightly cleaner look. Labels also are always executed and do not need to be called to have their associated code block ran. A purposeless example is below.
$headers = Array('subject', 'bcc', 'to', 'cc', 'date', 'sender');
$position = 0;
$c = 0;
echo $headers[$position] . PHP_EOL;
echo ' ' . $headers[$position][$c] . PHP_EOL;