Php obtains the current operating system type

This article explains in detail how to use php to obtain the current operating system type? Strictly speaking, there are two situations: obtaining the operating system type of the server and obtaining the operating system type of the client. How can I use php to obtain the current operating system type?

Strictly speaking, there are two situations: obtaining the operating system type of the server and obtaining the operating system type of the client.

The authors will share with you how to use php to obtain the operating system types in these two cases.

(1) php obtains the operating system type of the server.

In this case, you can use the php system's built-in constant PHP_ OS or the system function php_uname ('s ').

The possible values returned by the two methods are as follows:

CYGWIN_NT-5.1

Darwin
FreeBSD
HP-UX
IRIX64
Linux
NetBSD
OpenBSD
SunOS
Unix
WIN32
WINNT
Windows
CYGWIN_NT-5.1
IRIX64
SunOS
HP-UX

OpenBSD (not listed in Wikipedia)

However, based on the actual situation, the reader still prints out the results to see the best results. The results may not be listed above.

(2) php obtains the operating system type of the client.

The function code is as follows:

$os='';$Agent=$_SERVER['HTTP_USER_AGENT'];if (eregi('win',$Agent)&&strpos($Agent, '95')){$os='Windows 95';}elseif(eregi('win 9x',$Agent)&&strpos($Agent, '4.90')){$os='Windows ME';}elseif(eregi('win',$Agent)&&ereg('98',$Agent)){$os='Windows 98';}elseif(eregi('win',$Agent)&&eregi('nt 5.0',$Agent)){$os='Windows 2000';}elseif(eregi('win',$Agent)&&eregi('nt 6.0',$Agent)){$os='Windows Vista';}elseif(eregi('win',$Agent)&&eregi('nt 6.1',$Agent)){$os='Windows 7';}elseif(eregi('win',$Agent)&&eregi('nt 5.1',$Agent)){$os='Windows XP';}elseif(eregi('win',$Agent)&&eregi('nt',$Agent)){$os='Windows NT';}elseif(eregi('win',$Agent)&&ereg('32',$Agent)){$os='Windows 32';}elseif(eregi('linux',$Agent)){$os='Linux';}elseif(eregi('unix',$Agent)){$os='Unix';}else if(eregi('sun',$Agent)&&eregi('os',$Agent)){$os='SunOS';}elseif(eregi('ibm',$Agent)&&eregi('os',$Agent)){$os='IBM OS/2';}elseif(eregi('Mac',$Agent)&&eregi('PC',$Agent)){$os='Macintosh';}elseif(eregi('PowerPC',$Agent)){$os='PowerPC';}elseif(eregi('AIX',$Agent)){$os='AIX';}elseif(eregi('HPUX',$Agent)){$os='HPUX';}elseif(eregi('NetBSD',$Agent)){$os='NetBSD';}elseif(eregi('BSD',$Agent)){$os='BSD';}elseif(ereg('OSF1',$Agent)){$os='OSF1';}elseif(ereg('IRIX',$Agent)){$os='IRIX';}elseif(eregi('FreeBSD',$Agent)){$os='FreeBSD';}elseif($os==''){$os='Unknown';}return $os;}

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