Programming PHP

Name

checkdnsrr

Synopsis

int checkdnsrr(string host[, string type])

Searches DNS records for a host having the given type. Returns true if any records are found, and false if none are found. The host type can take any of the following values (if no value is specified, MX is the default):

A	IP address
MX (default)	Mail exchanger
NS	Name server
SOA	Start of authority
PTR	Pointer to information
CNAME	Canonical name
ANY	Any of the above