Slugify and Slugifile

function slugify($text) {
	$text = preg_replace('~[^\pL\d]+~u', '-', $text);
	$text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);
	$text = preg_replace('~[^-\w]+~', '', $text);
	$text = trim($text, '-');
	$text = preg_replace('~-+~', '-', $text);
	$text = strtolower($text);
	if (empty($text)) {
		return '';
	}
	return $text;
}

function slugifile($text) {
	$text = preg_replace('~[^\pL\d]+~u', '-', $text);
	$text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);
	$text = preg_replace('~[^-\w]+~', '', $text);
	$text = trim($text, '-');
	$text = preg_replace('~-+~', '-', $text);
	$text = strtolower($text);
	// file extenstion
	$text = rtrim( str_replace( end(explode('-', $text)), '', $text ), '-' ) . '.' . end(explode('-', $text)) ;
	if (empty($text)) {
		return '';
	}
	return $text;
}