whois on first level and second level ttld

[rider]

Hello,

 

From client area cart, if a customer want register a .fr domain, an availability from whois is made before to allow to add domain into the cart.

 

If customer type :

 

1/ domain.fr ==) only .fr is checked and if .com.fr is ever taken, there is no check for that

 

2/ domain.com.fr ==> only .com.fr is checked and if .fr is ever taken, there is no check for that

 

But from registry registration rules, if one on above is ever taken registration is not possible on other one. Client order is not possible.

 

I would like both ( .fr & .com.fr) are tested on whois server, and if one of them is ever taken, then result answer must say taken.

 

 

On includes/whoisservers.php , there are :

.fr|whois.nic.fr|No entries found

.com.fr|whois.nic.fr|No entries found

 

 

Which kind of code can test both ?

 

Regards