The DNS helps users to get their way around the Internet. Every computer on the Internet has a unique address - just like a phone number - which is a rather complicated string of numbers. It is named its IP address.
PayPal is an acquirer, performing payment processing for online providers, auction sites, and other commercial users, for which it charges a fee. Additionally, it can impose a fee for obtaining money, proportional to the sum received.
PHP's true strength lies in its capacity to access databases. PHP can certainly access over 20 different databases (among them MySQL), and can manipulate the content within those databases influenced by input from an online user. PHP may also be used to output pictures, PDF data files and even Flash movies from your website.
A Whois record provides the entire contact details associated with the person, group, or company that registers a particular domain name. Generally, each Whois record will provide information for example the name and contact data of the registrant who is actually the owner of the domain, the name and contact information of the registrar which is the institution that registered the domain name, the registration dates, the NS, the latest update, plus the expiration date.