(PHP 4, PHP 5)
gethostbyaddr — Get the Internet host name corresponding to a given IP address
$ip_address
)
Returns the host name of the Internet host specified by
ip_address
.
ip_address
The host IP address.
Returns the host name on success, the unmodified ip_address
on failure, or FALSE
on malformed input.
Example #1 A simple gethostbyaddr() example
<?php
$hostname = gethostbyaddr($_SERVER['REMOTE_ADDR']);
echo $hostname;
?>