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Check DNS records corresponding to a given Internet host name or IP address
Network Functions
PHP Manual

checkdnsrr

(PHP 4, PHP 5)

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

Description

bool checkdnsrr ( string $host [, string $type = "MX" ] )

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.

Return Values

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

Changelog

Version Description
5.3.0 This function is now available on Windows platforms.
5.2.4 TXT type was added.
5.0.0 AAAA type was added.

Notes

Note:

For compatibility with Windows before this was implemented, then try the » PEAR class » Net_DNS.

See Also


Network Functions
PHP Manual