JAVA Kodunu PHP'ye Cevirebilecek var mı?

	private static String convertToHex(byte[] data) {
        StringBuffer buf = new StringBuffer();
        
        for (int i = 0; i < data.length; i++) {
            int halfbyte = (data[i] >>> 4) & 0x0F;
            int two_halfs = 0;
            
            do {
                if ((0 <= halfbyte) && (halfbyte <= 9))
                    buf.append((char) ('0' + halfbyte));
                else
                    buf.append((char) ('a' + (halfbyte - 10)));
                
                halfbyte = data[i] & 0x0F;
            } while (two_halfs++ < 1);
        }
        
        return buf.toString();
    }