Php/docs/function.getmxrr
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getmxrr
(PHP 4, PHP 5, PHP 7)
getmxrr — Get MX records corresponding to a given Internet host name
Description
getmxrr
( string $hostname
, array &$mxhosts
[, array &$weight
] ) : bool
Searches DNS for MX records corresponding to
hostname
.
Parameters
hostname
- The Internet host name.
mxhosts
- A list of the MX records found is placed into the array
mxhosts
. weight
- If the
weight
array is given, it will be filled with the weight information gathered.
Return Values
Returns TRUE
if any records are found; returns FALSE
if no records
were found or if an error occurred.
Notes
Note:
This function should not be used for the purposes of address verification. Only the mailexchangers found in DNS are returned, however, according to » RFC 2821 when no mail exchangers are listed,
hostname
itself should be used as the only mail exchanger with a priority of0
.
Note:
For compatibility with Windows before this was implemented, then try the » PEAR class » Net_DNS.
See Also
- checkdnsrr() - Check DNS records corresponding to a given Internet host name or IP address
- dns_get_record() - Fetch DNS Resource Records associated with a hostname
- 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
- gethostbyaddr() - Get the Internet host name corresponding to a given IP address
- the
named(8)
manual page