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;
?>
