Php/docs/function.checkdnsrr

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

checkdnsrr

(PHP 4, PHP 5, PHP 7)

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

Description

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

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.

Notes

Note:

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

See Also

• dns_get_record() - Fetch DNS Resource Records associated with a hostname
• getmxrr() - Get MX records corresponding to a given Internet host name
• gethostbyaddr() - Get the Internet host name corresponding to a given IP address
• gethostbyname() - Get the IPv4 address corresponding to a given Internet host name
• gethostbynamel() - Get a list of IPv4 addresses corresponding to a given Internet host name
• the named(8) manual page