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gethostname

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

gethostname — 获取主机名

说明

gethostname(): string|false

gethostname() 可以获取本地机器的标准主机名。

参数

此函数没有参数。

返回值

成功时返回主机名称字符串，失败时返回 false。

示例

示例 #1 简单的 gethostname() 例子

<?php
echo gethostname(); // 可能会输出：sandie
?>

参见

gethostbyname() - 返回主机名对应的 IPv4地址。
gethostbyaddr() - 获取指定 IP 地址对应的 Internet 主机名
php_uname() - 返回运行 PHP 的系统的有关信息

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User Contributed Notes 4 notes

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-1

php at pk1048 dot com ¶

5 months ago

Regarding Linux vs. macOS, that is not a difference in OS or PHP. macOS sets the hostname to <shortname>.local. Open a terminal window and run `hostname` to check. The local hostname can be set on macOS under the Sharing Preferences (or Settings if Ventura 13 or newer).

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-1

markosjal AT Gmail ¶

1 year ago

Since I built a PHP app that runs on Linux Windows and MacOS I just discovered that using gethostname() behaves differently on different OSes. Linux will return "hostname" while MacOS 10.15 will return "hostname.local"  . Have yet to determine how Windows behaves but the difference is worth noting. Only a few days ago I was wanting to get the LAN extension in Linux and was never able to. I was oly hable to get "hostname".  In MacOS it is just there. with "hostname.local"

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-34

kurdtpage at gmail dot com ¶

5 years ago

On Linux, use the command `hostname` to view your host name, or `sudo hostname servername` to set it

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-35

solaris ¶

4 years ago

To the prev. note: **NEVER USE*** 
#`sudo hostname servername`

Some *nix systems will then force to set the 'servername' as new hostname!

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