Mine

function gettok($str, $wo, $tok) {
if (strstr($wo, "-") == false) {
$ex = explode($tok, $str);
$wo = $wo - 1;
return $ex[$wo];
} else {
$ex = explode($tok, $str);
$wo = intval($wo);
$wo = $wo - 1;
$length = strlen($str);
$i = $wo;
while ($i < $length) {
$done[] = $ex[$i];
$i++;
}
return implode(" ", $done);
}
}