getmxrr
(PHP 4, PHP 5)
getmxrr — Get MX records corresponding to a given Internet host name
说明
Searches DNS for MX records corresponding to hostname .
参数
- 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.
返回值
Returns TRUE if any records are found; returns FALSE if no records were found or if an error occurred.
注释
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: This function is not implemented on Windows platforms. Try the » PEAR class » Net_DNS.
参见
- checkdnsrr()
- dns_get_record()
- gethostbyname()
- gethostbynamel()
- gethostbyaddr()
- the named(8) manual page
