gethostbyaddr

(PHP 4, PHP 5)

gethostbyaddr — Get the Internet host name corresponding to a given IP address

string gethostbyaddr ( string $ip_address )

Returns the host name of the Internet host specified by ip_address .

Returns the host name or the unmodified ip_address on failure.

Example#1 A simple gethostbyaddr() example


<?php
$hostname = gethostbyaddr($_SERVER['REMOTE_ADDR']);

echo $hostname;
?>


	PHP5中文手册 fsockopen gethostbyname Network PHP Manual gethostbyaddr (PHP 4, PHP 5) gethostbyaddr — Get the Internet host name corresponding to a given IP address 说明 string gethostbyaddr ( string `$ip_address` ) Returns the host name of the Internet host specified by `ip_address` . 参数 `ip_address` The host IP address. 返回值 Returns the host name or the unmodified `ip_address` on failure. 范例 Example#1 A simple gethostbyaddr() example `<?php $hostname = gethostbyaddr($_SERVER['REMOTE_ADDR']); echo $hostname; ?>` 参见 gethostbyname() gethostbynamel() fsockopen gethostbyname Network PHP Manual