How to get the OS on which PHP is running?
PhpOperating SystemPhp Problem Overview
For building a unix/dos specific script I need to know on which kind of operating system I am.
How do i get this information?
phpinfo(); tells me a lot more and not very clear whether I'm running on unix or not.
Php Solutions
Solution 1 - Php
PHP has many predefined constants that are often useful.
Here, PHP_OS is the one you are looking for.
For instance, on my current machine, this code :
var_dump(PHP_OS);
Gives :
string 'Linux' (length=5)
You have some examples and comparisons with what the php_uname function can get you on the manual page of php_uname ; for instance (quoting) :
<?php
echo php_uname();
echo PHP_OS;
/* Some possible outputs:
Linux localhost 2.4.21-0.13mdk #1 Fri Mar 14 15:08:06 EST 2003 i686
Linux
FreeBSD localhost 3.2-RELEASE #15: Mon Dec 17 08:46:02 GMT 2001
FreeBSD
Windows NT XN1 5.1 build 2600
WINNT
*/
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
echo 'This is a server using Windows!';
} else {
echo 'This is a server not using Windows!';
}
That page also says :
> For the name of just the operating
> system, consider using the PHP_OS
> constant, but keep in mind this
> constant will contain the operating
> system PHP was built on.
Solution 2 - Php
Just bear in mind that PHP_OS actually contains the platform on which PHP was built. This may not be the same platform as that on which it is deployed. Therefore php_uname('s') is more reliable.
Solution 3 - Php
As of PHP 7.2.0 we have a new Predefined Constant to get the operating system family i.e. PHP_OS_FAMILY. It returns a string Either of 'Windows', 'BSD', 'OSX', 'Solaris', 'Linux' or 'Unknown'.
Solution 4 - Php
PHP Does not provide any function to get the name of the distribution, php_uname is similar to Linux command uname, does not provide any info about the distribution itself.
Neither php_uname nor PHP_OS give sufficient info. about the distribution but the OS type (e.g. Linux / Windows).
I think the best way to know what is the running OS/distribution is to read /etc/os-release, the good thing is this file has read permission for all system users and the bad thing is it may not work on shared hosting.
Here I wrote a very simple PHP function which reads and convert os-release to an array:
function getOSInformation()
{
if (false == function_exists("shell_exec") || false == is_readable("/etc/os-release")) {
return null;
}
$os = shell_exec('cat /etc/os-release');
$listIds = preg_match_all('/.*=/', $os, $matchListIds);
$listIds = $matchListIds[0];
$listVal = preg_match_all('/=.*/', $os, $matchListVal);
$listVal = $matchListVal[0];
array_walk($listIds, function(&$v, $k){
$v = strtolower(str_replace('=', '', $v));
});
array_walk($listVal, function(&$v, $k){
$v = preg_replace('/=|"/', '', $v);
});
return array_combine($listIds, $listVal);
}
This function prints something like this:
Array
(
[name] => Ubuntu
[version] => 16.04.2 LTS (Xenial Xerus)
[id] => ubuntu
[id_like] => debian
[pretty_name] => Ubuntu 16.04.2 LTS
[version_id] => 16.04
[home_url] => http://www.ubuntu.com/
[support_url] => http://help.ubuntu.com/
[bug_report_url] => http://bugs.launchpad.net/ubuntu/
[version_codename] => xenial
[ubuntu_codename] => xenial
)
Held og lykke [1] ;-)
[1] Danish phrase means good luck.
Solution 5 - Php
PHP_OS is prefined with the host os name: http://us2.php.net/manual/en/reserved.constants.php
Solution 6 - Php
On php 7.2.0 you can use the PHP_OS_FAMILY constant:
In other PHP version you can use:
/**
* return DOS OR UNIX
*/
function familyOS() {
return (stripos(PHP_OS, "WIN") === 0)? "DOS" : "UNIX";
}
Solution 7 - Php
There are 2 different way to check the platform that your PHP is running on it.
- Using
PHP_OSwhich is a const and will point to the 'operating system name' that your PHP was built in it. - Using PHP built in function
php_uname()that will tell you more about platform (Operating system name, Host name, Version information, Release name, Machine type) that your script is running on it.
Solution 8 - Php
#!/usr/bin/env php
<?php
$platform = DIRECTORY_SEPARATOR === '\\'
? 'Windows'
: 'Unix/Linux';
I am aware that this is not very granular, but it may suffice for a simple recognition between Win and *nix systems. YMMV
Solution 9 - Php
Here what i am using
switch (strtolower(php_uname('s'))) {
case "linux": echo "Server is running on linux OS"
break;
case "windows nt": echo "Server is running on Windows OS"
break;
default:
echo "Unknown";
break;
}
We can also use PHP_OS but this is not accurate as documentation says
The operating system PHP was built for
so php_uname('s') is good approach.
However PhpStrom 2020.2 IDE suggests [EA] PHP_OS constant should be used instead.
Solution 10 - Php
$user_agent = $_SERVER['HTTP_USER_AGENT'];
function getOS() {
global $user_agent;
$os_platform = "Unknown OS Platform";
$os_array = array(
'/windows nt 6.2/i' => 'Windows 8',
'/windows nt 6.1/i' => 'Windows 7',
'/windows nt 6.0/i' => 'Windows Vista',
'/windows nt 5.2/i' => 'Windows Server 2003/XP x64',
'/windows nt 5.1/i' => 'Windows XP',
'/windows xp/i' => 'Windows XP',
'/windows nt 5.0/i' => 'Windows 2000',
'/windows me/i' => 'Windows ME',
'/win98/i' => 'Windows 98',
'/win95/i' => 'Windows 95',
'/win16/i' => 'Windows 3.11',
'/macintosh|mac os x/i' => 'Mac OS X',
'/mac_powerpc/i' => 'Mac OS 9',
'/linux/i' => 'Linux',
'/ubuntu/i' => 'Ubuntu',
'/iphone/i' => 'iPhone',
'/ipod/i' => 'iPod',
'/ipad/i' => 'iPad',
'/android/i' => 'Android',
'/blackberry/i' => 'BlackBerry',
'/webos/i' => 'Mobile'
);
foreach ($os_array as $regex => $value) {
if (preg_match($regex, $user_agent)) {
$os_platform = $value;
}
}
return $os_platform;
}
$user_os = getOS();
$device_details = "<strong>Operating System: </strong>".$user_os."";
print_r($device_details);