WeberDev.com PHP and MySQL Code

LOG IN
BEGINNER GUIDES  |  PHP CLASSES  |  CODE SEARCH  |  ARTICLES SEARCH  |  PHP FORUMS  |  PHP MANUAL  |  PHP FUNCTIONS LIST  |  WEB SITE TEMPLATES
Start typing to search for PHP and MySQL Code Snippets and Articles Search
Submit a code Example / Snippet Submit Your Code
Search Engine Optimization Monitor SEO Monitor
Web Site UpTime Monitor UpTime Monitor
WeberDev's Monthly code contest PHP Code Contest
Your Personal Examples List My Favorite Examples
Your Personal Articles List My Favorite Articles
Edit Account Info Update Your Profile
More Weber Sites
PHP Code Search
Web Development Forums
Learn MySQL Playing Trivia
PHPBB2 Templates
Web Development Index
PHP Web Logs (BLogs)
Web Development Resources
Web Development Content
Recommended Links
PHPClasses
PHP Editor
PHP Jobs
Vision.To Design
Ajax Tutorials
PHP Programming Help
PHP/MySQL Programming
Webmaster Resources
Webmaster Forum
XML meta language
website builder
Recommended
Submit Site
Forex Trading Online forex trading platform
Returns information about the operating system PHP is running on

php_uname

(PHP 4 >= 4.0.2, PHP 5)

php_uname — Returns information about the operating system PHP is running on

Description

string php_uname ([ string $mode ] )

php_uname() returns a description of the operating system PHP is running on. For the name of just the operating system, consider using the PHP_OS constant, but be reminded this constant will contain the operating system PHP was built on.

On Unix, the output reverts to displaying the operating system information PHP was built on if it cannot determine the currently running OS.

Parameters

mode

mode is a single character that defines what information is returned:

  • 'a': This is the default. Contains all modes in the sequence "s n r v m".
  • 's': Operating system name. eg. FreeBSD.
  • 'n': Host name. eg. localhost.example.com.
  • 'r': Release name. eg. 5.1.2-RELEASE.
  • 'v': Version information. Varies a lot between operating systems.
  • 'm': Machine type. eg. i386.

Return Values

Returns the description, as a string.

Examples

Example #1 Some php_uname() examples

<?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!';
}

?>

There are also some related Predefined PHP constants that may come in handy, for example:

Example #2 A few OS related constant examples

<?php
// *nix
echo DIRECTORY_SEPARATOR; // /
echo PHP_SHLIB_SUFFIX;    // so
echo PATH_SEPARATOR;      // :

// Win*
echo DIRECTORY_SEPARATOR; // \
echo PHP_SHLIB_SUFFIX;    // dll
echo PATH_SEPARATOR;      // ;
?>

See Also