Returning amount of money in Indian ruppes to Crores / Lakhs / Thousands

<?php define('INR_THOUSAND', 1000); define('INR_LAKH', 100 * INR_THOUSAND); define('INR_CRORE', 100 * INR_LAKH); echo amountInINR(15000)."\n"; echo amountInINR(1500000)."\n"; echo amountInINR(150000000)."\n"; echo amountInINR(9876543210)."\n"; func...