checkdnsrr

(PHP 4, PHP 5, PHP 7, PHP 8)

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

Опис

checkdnsrr(string $hostname, string $type = "MX"): bool

Searches DNS for records of type type corresponding to hostname.

Параметри

hostname

hostname 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.

Значення, що повертаються

Returns true if any records are found; returns false if no records were found or if an error occurred.

Примітки

Зауваження:

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

Прогляньте також

  • dns_get_record() - Fetch DNS Resource Records associated with a hostname
  • getmxrr() - Get MX records corresponding to a given Internet host name
  • gethostbyaddr() - Отримує назву хоста в інтернеті, відповідну до заданої IP-адреси
  • 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