inet_ntop
(PHP 5 >= 5.1.0)
inet_ntop — Converts a packed internet address to a human readable representation
说明
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.
参数
- in_addr
-
A 32bit IPv4, or 128bit IPv6 address.
返回值
Returns a string representation of the address or FALSE on failure.
范例
Example#1 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;
?>
注释
Note: 本函数未在 Windows 平台下实现。
