Mine

		$spacedString = $string[0];
		for ($i=1; $i < strlen($string); $i++) {
			echo "<BR>" . $string[$i] .":" . (int)$string[$i];
			if ( (int)$string[$i] >= 65 && (int)$string[$i] <= 90 ) $spacedString .= " ".$string[$i];
			else $spacedString .= $string[$i];
		}