inet_ntop

(PHP 5 >= 5.1.0, PHP 7)

inet_ntop — Converts a packed internet address to a human readable representation

说明

inet_ntop ( string $in_addr ) : string

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 或者在失败时返回 FALSE.

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;
?>

更新日志

版本 说明
5.3.0 This function is now available on Windows platforms.

参见

  • long2ip() - 将长整型转化为字符串形式带点的互联网标准格式地址（IPV4）
  • ip2long() - 将 IPV4 的字符串互联网协议转换成长整型数字
  • inet_pton() - Converts a human readable IP address to its packed in_addr representation