(PHP 4, PHP 5, PHP 7)
Check DNS records corresponding to a given Internet host name or IP address
bool checkdnsrr ( string $host [, string $type = "MX" ] )
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.
Returns:
Returns TRUE
if any records are found; returns FALSE
if no records were found or if an error occurred.
Changelog:
5.3.0
This function is now available on Windows platforms.
5.2.4
TXT type
was added.
Notes:
For compatibility with Windows before this was implemented, then try the » PEAR class » Net_DNS.
See also:
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