(PHP 3, PHP 4, PHP 5)
checkdnsrr -- Check DNS records corresponding to a given Internet host name or IP address
Searches DNS for records of type type
corresponding to host
.
host
host
may either be the IP address in
dotted-quad notation or the host name.
type
type
may be any one of: A, MX, NS, SOA,
PTR, CNAME, AAAA, A6, SRV, NAPTR or ANY. The default is MX.
Returns TRUE if any records are found; returns FALSE if no records were found or if an error occurred.
dns_get_record() |
getmxrr() |
gethostbyaddr() |
gethostbyname() |
gethostbynamel() |
the named(8) manual page |