WHMCS Client Details Available in Templates (.tpl) Files

In customizing WHMCS client area, several client details are easily available as a predefined array, with the following values:

{$clientsdetails.userid}	ID coming from tblclients
{$clientsdetails.id}	ID coming from tblclients
{$clientsdetails.firstname}	First Name
{$clientsdetails.lastname}	Last Name
{$clientsdetails.companyname}	Company Name
{$clientsdetails.email}	Email
{$clientsdetails.address1}	Address line 1
{$clientsdetails.address2}	Address line 2
{$clientsdetails.city}	City
{$clientsdetails.state}	State
{$clientsdetails.postcode}	Zipcode
{$clientsdetails.country}	Country code
{$clientsdetails.countryname}	Country full name
{$clientsdetails.phonenumber}	Phone number
{$clientsdetails.notes}	Admin notes on client
{$clientsdetails.password}	Hashed or encoded password
{$clientsdetails.currency}	Currency ID coming from tlbcurrencies
{$clientsdetails.cctype}	Credir Card type (Visa, Amex etc)
{$clientsdetails.cclastfour}	Credit Card last 4 digits
{$clientsdetails.securityqid}	Security question ID
{$clientsdetails.securityqans}	Answer for security question
{$clientsdetails.groupid}	Client group ID
{$clientsdetails.status}	Status (Active, Inactive, Closed)
{$clientsdetails.credit}	Amount of credit
{$clientsdetails.taxexempt}	“Don’t Apply Tax to Invoices” setting
{$clientsdetails.latefeeoveride}	“Don’t Apply Late Fees” setting
{$clientsdetails.overideduenotices}	“Don’t Send Overdue Emails” setting
{$clientsdetails.separateinvoices}	“Separate Invoices for Services” setting
{$clientsdetails.disableautocc}	“Disable Automatic CC Processing” setting
{$clientsdetails.language}	Client language (empty = default language)
{$clientsdetails.lastlogin}	Last login info
{$clientsdetails.customfields1}	Custom fields value 1
{$clientsdetails.customfields2}	Custom fields value 2
{$clientsdetails.customfields3}	Custom fields value 3 etc
{$clientsdetails.billingcid}	contact number to be used for billing