php - checkdnsrr

Check DNS records corresponding to a given Internet host name or IP address

Description

int checkdnsrr ( string $host [, string $type] )
Searches DNS for records of type type corresponding to host.

Parameters

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, TXT or ANY. The default is MX.

Return Values

Returns TRUE if any records are found; returns FALSE if no records were found or if an error occurred.