Serial Number is identification number generated for a product to secure it from be used freely or abuse. Example each product has a unique serial key (XXX-XXX-XXX-XXX). This function helps you to generate unique Serial Numbers In Php.
Being able to Read file size from directory, file size are in bits and it counts numerous digits when you have file size rang from bytes to kilobytes and more. Calculation of this becomes more difficult to format or converting to the public in a readable format like 1MB or 100GB Read more