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gethostbyaddr

gethostbyaddr

(PHP 4, PHP 5, PHP 7)

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 on success, the unmodified ip_address on failure, or FALSE on malformed input.

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

← fsockopen

gethostbyname →

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Licensed under the Creative Commons Attribution License v3.0 or later.

https://secure.php.net/manual/en/function.gethostbyaddr.php