Get the PHP code that the client uses for the operating system type

function Useros () { $user _osagent = $_server[' http_user_agent '); if (Strpos ($user _osagent, "NT 6.1")) { $visitor _os = "Windows 7"; } elseif (Strpos ($user _osagent, "NT 5.1")) { $visitor _os = "Windows XP (SP2)"; } elseif (Strpos ($user _osagent, "NT 5.2") && Strpos ($user _osagent, "WOW64")) { $visitor _os = "Windows XP 64-bit Edition"; } elseif (Strpos ($user _osagent, "NT 5.2")) { $visitor _os = "Windows 2003"; } elseif (Strpos ($user _osagent, "NT 6.0")) { $visitor _os = "Windows Vista"; } elseif (Strpos ($user _osagent, "NT 5.0")) { $visitor _os = "Windows 2000"; } elseif (Strpos ($user _osagent, "4.9")) { $visitor _os = "Windows ME"; } elseif (Strpos ($user _osagent, "NT 4")) { $visitor _os = "Windows NT 4.0"; } elseif (Strpos ($user _osagent, "98")) { $visitor _os = "Windows 98"; } elseif (Strpos ($user _osagent, "95")) { $visitor _os = "Windows 95"; }elseif (Strpos ($user _osagent, "NT")) { $visitor _os = "higher version of Windows"; }elseif (Strpos ($user _osagent, "Mac")) { $visitor _os = "Mac"; } elseif (Strpos ($user _osagent, "Linux")) { $visitor _os = "Linux"; } elseif (Strpos ($user _osagent, "Unix")) { $visitor _os = "Unix"; } elseif (Strpos ($user _osagent, "FreeBSD")) { $visitor _os = "FreeBSD"; } elseif (Strpos ($user _osagent, "SunOS")) { $visitor _os = "SunOS"; } elseif (Strpos ($user _osagent, "BeOS")) { $visitor _os = "BeOS"; } elseif (Strpos ($user _osagent, "OS/2")) { $visitor _os = "OS/2"; } elseif (Strpos ($user _osagent, "PC")) { $visitor _os = "Macintosh"; } elseif (Strpos ($user _osagent, "AIX")) { $visitor _os = "AIX"; } elseif (Strpos ($user _osagent, "IBM os/2")) { $visitor _os = "IBM os/2"; } elseif (Strpos ($user _osagent, "BSD")) { $visitor _os = "BSD"; } elseif (Strpos ($user _osagent, "NetBSD")) { $visitor _os = "NetBSD"; } else { $visitor _os = "Other operating system"; } return $visitor _os; } Copy Code

Php

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