gethostbyaddr
(PHP 4, PHP 5)
gethostbyaddr — Get the Internet host name corresponding to a given IP address
Description
string gethostbyaddr
( string $ip_address
)
Returns the host name of the Internet host specified by ip_address.
Parameters
- ip_address
-
The host IP address.
Return Values
Returns the host name or the unmodified ip_address on failure.
Examples
Example #1 A simple gethostbyaddr() example
<?php
$hostname = gethostbyaddr($_SERVER['REMOTE_ADDR']);
echo $hostname;
?>
See Also
- gethostbyname() - Get the IPv4 address corresponding to a given Internet host name
- gethostbynamel() - Get a list of IPv4 addresses corresponding to a given Internet host name