How to get the operating system type in php

This article mainly introduces how to obtain the operating system type in PHP. Interested friends can refer to it. I hope it will be helpful to everyone.

How to use php to get the current operating system type? Strictly speaking, there are two situations, one is to obtain the operating system type of the server, and the other is to obtain the operating system type of the client. The author below will share with you how to use php to obtain the operating system type in these two situations.
(1)php obtains the operating system type ofserver-sideAt this time, you can use theconstant PHP_OSthat comes with the php systemor System functionphp_uname('s').

• 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

(2) PHP obtains the operating system type ofclient. Here is a function that is more accurate than those circulating on the Internet and has no bugs. The function code is as follows:

function getOS(){ $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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