php_uname
(PHP 4 >= 4.0.2, PHP 5)
php_uname --
Returns information about the operating system PHP was built on
Description
string
php_uname ( void )
php_uname() returns a string with a
description of the operating system PHP is built on. If you're just
wanting the name of the operating system, consider using the
PHP_OS constant.
例子 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!';
}
?>
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There are also some related
Predefined PHP
constants that may come in handy, for example:
例子 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; // ;
?>
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See also phpversion(),
php_sapi_name(), and
phpinfo().