function beginsWithVowel($str) {
	$vowels[0] = 'a';
	$vowels[1] = 'e';
	$vowels[2] = 'i';
	$vowels[3] = 'o';
	$vowels[4] = 'u';
	$str2 = strtolower($str);
	if($vowels[array_search($str2{0}, $vowels)] == $str2{0} ) {
		return "an";
	} else {
		return "a";
	}
}