checkdnsrr

(PHP 4, PHP 5)

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

Description

bool 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.

ChangeLog

Version	Description
5.2.4	TXT type was added.
5.0.0	AAAA type was added.

Notes

Note: This function is not implemented on Windows platforms. Try the » PEAR class » Net_DNS.

See Also

• dns_get_record()
• getmxrr()
• gethostbyaddr()
• gethostbyname()
• gethostbynamel()
• the named(8) manual page