CascadiaPHP 2024

gethostname

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

gethostnameGets the host name

Description

gethostname(): string|false

gethostname() gets the standard host name for the local machine.

Parameters

This function has no parameters.

Return Values

Returns a string with the hostname on success, otherwise false is returned.

Examples

Example #1 A simple gethostname() example

<?php
echo gethostname(); // may output e.g,: sandie
?>

See Also

  • gethostbyname() - Get the IPv4 address corresponding to a given Internet host name
  • gethostbyaddr() - Get the Internet host name corresponding to a given IP address
  • php_uname() - Returns information about the operating system PHP is running on

add a note

User Contributed Notes 4 notes

up
-1
markosjal AT Gmail
2 years 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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-1
php at pk1048 dot com
1 year 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).
up
-33
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
up
-34
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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