How PHP Gets the operating system type

This article mainly introduces how PHP obtains the operating system type, the interested friend's reference, hoped to be helpful to everybody.

How do I get the current operating system type using PHP? Strictly speaking there are two cases , one case is to get the server-side operating system type, one is to obtain the client's operating system type. The following authors will do some sharing on how to use PHP to get the operating system type in both cases.
(1) PHP gets the server-side OS type this time you can use the PHP system's own constant php_os or system function php_uname (' s '). There are several scenarios in which the values returned by the two are possible:

• 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

However, depending on the circumstances of the reader or print out their own results to see the best, perhaps the results are not listed above.
(2) PHP gets the client 's operating system type, here to share a function, more accurate than those circulated on the Internet, and no bug, the function code is as follows:

function Getos () {$os = ';  $Agent =$_server[' http_user_agent '];  if (' Win ', $Agent) &&strpos ($Agent, ' eregi ') {$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 (' + ', $Agent)) {$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; }

Summary: The above is the entire content of this article, I hope to be able to help you learn.