inet_ntop

(PHP 5 >= 5.1.0, PHP 7)

Converts a packed internet address to a human readable representation

string inet_ntop ( string $in_addr )

This function converts a 32bit IPv4, or 128bit IPv6 address (if PHP was built with IPv6 support enabled) into an address family appropriate string representation.

Parameters:

in_addr

A 32bit IPv4, or 128bit IPv6 address.

Returns:

Returns a string representation of the address or FALSE on failure.

Changelog:

5.3.0

This function is now available on Windows platforms.

Examples:

inet_ntop() Example

<?php
$packed = chr(127) . chr(0) . chr(0) . chr(1);
$expanded = inet_ntop($packed);

/* Outputs: 127.0.0.1 */
echo $expanded;

$packed = str_repeat(chr(0), 15) . chr(1);
$expanded = inet_ntop($packed);

/* Outputs: ::1 */
echo $expanded;
?>