checkdnsrr

(PHP 4, PHP 5)

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

Descrição

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

Searches DNS for records of type type corresponding to host.

Parâmetros

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.

Valor Retornado

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

Changelog

Versão Descrição
5.3.0 This function is now available on Windows platforms.
5.2.4 TXT type was added.

Notas

Note:

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

Veja Também

  • dns_get_record() - Fetch DNS Resource Records associated with a hostname
  • getmxrr() - Obtém registros MX correspondendo ao nome do host de Internet fornecido.
  • gethostbyaddr() - Obtém nome do host de Internet correspondendo ao endereçõ de IP fornecido.
  • 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