gethostbyname_r returns NULL when hostname has dash Post: 302197944

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LEARN ABOUT PHP

getmxrr

GETMXRR(3)								 1								GETMXRR(3)

getmxrr - Get MX records corresponding to a given Internet host name

SYNOPSIS

       bool getmxrr (string  $hostname, array  &$mxhosts, [array  &$weight])

DESCRIPTION

	Searches DNS for MX records corresponding to $hostname.

PARAMETERS

	      o $hostname
		- The Internet host name.

	      o $mxhosts
		- A list of the MX records found is placed into the array $mxhosts.

	      o $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.

CHANGELOG

       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 5.3.0	|						    |
       |	|						    |
       |	|  This  function is now available on Windows plat- |
       |	| forms.					    |
       |	|						    |
       +--------+---------------------------------------------------+
NOTES

       Note

	       This function should not be used for the purposes of address verification. Only the mailexchangers found in DNS are returned,  how-
	      ever,  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.

SEE ALSO

       checkdnsrr(3), dns_get_record(3), gethostbyname(3), gethostbynamel(3), gethostbyaddr(3), the named(8) manual page.

PHP Documentation Group 														GETMXRR(3)

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