The Net_DNS class provides DNS packet manipulation methods and the ability to send and receive packets to/from nameservers. Any type of DNS packet can be created, including RFC 2136 style DNS UPDATE packets.
The current list of supported RR types are:
A
AAAA
A
CNAME
HINFO
MX
NAPTR
NS
PTR
SOA
SRV
TSIG
TXT