checkdnsrr
(PHP 4, PHP 5, PHP 7, PHP 8)
checkdnsrr — Check DNS records corresponding to a given Internet host name or IP address
Description
checkdnsrr(string
$hostname, string $type = "MX"): bool
Searches DNS for records of type type
corresponding to hostname.
Parameters
-
hostname -
hostnamemay either be the IP address in dotted-quad notation or the host name. -
type -
typemay 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
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