(PHP 4, PHP 5, PHP 7)
getmxrr — Get MX records corresponding to a given Internet host name
$hostname
, array &$mxhosts
[, array &$weight
] )
Searches DNS for MX records corresponding to
hostname
.
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.
Returns TRUE
if any records are found; returns FALSE
if no records
were found or if an error occurred.
版本 | 说明 |
---|---|
5.3.0 | This function is now available on Windows platforms. |
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 of 0.
Note:
For compatibility with Windows before this was implemented, then try the » PEAR class » Net_DNS.