function SniffBrowser() { /*************************************************************************** This function is a browser sniffer that returns a string-indexed array. The call: $browser = SniffBrowser(); will return the following: $browser['type'] = Netscape, Explorer, Opera, Amaya, Unknown $browser['version'] = version number (float) $browser['platform'] = Windows, Mac, Other $browser['css'] = CSS version $browser['dom'] = DOM type: NS, IE, W3C, 0 ***************************************************************************/ global $HTTP_USER_AGENT; $b = $HTTP_USER_AGENT; $vers = 0.0; // detect browser brand and version number if (eregi('Opera[ \/]([0-9\.]+)' , $b, $a)) { $type = 'Opera';} elseif (eregi('Netscape[[:alnum:]]*[ \/]([0-9\.]+)', $b, $a)) { $type = 'Netscape';} elseif (eregi('MSIE[ \/]([0-9\.]+)', $b, $a)) { $type = 'Explorer';} elseif (eregi('Mozilla[ \/]([0-9\.]+)' , $b, $a)) { if (eregi('compatible' , $b)) { $type = 'Unknown';} else { $type = 'Netscape';}} elseif (eregi('([[:alnum:]]+)[ \/v]*([0-9\.]+)' , $b, $a)) { $type = $a[1]; $vers = $a[2];} else { $type = 'Unknown';} if (!$vers) $vers = $a[1]; $browser['type'] = $type; $browser['version'] = $vers; // detect platform if (eregi('Win',$b)) $browser['platform'] = 'Windows'; elseif (eregi('Mac',$b)) $browser['platform'] = 'Mac'; else $browser['platform'] = 'Other'; // find CSS version // note: it is unknown which future versions will support CSS2 if ($type == 'Netscape' && $vers >= 4 || $type == 'Explorer' && $vers >= 3 || $type == 'Opera' && $vers >= 3) { $browser['css'] = 1; if ($type == 'Netscape' && $vers >= 5 || $type == 'Explorer' && $vers >= 6 || $type == 'Opera' && $vers >= 4) { $browser['css'] = 2;}} // detect DOM version $browser['dom'] = '0'; if ($type == 'Explorer' && $vers >= 4 && $browser['platform'] == 'Windows') { // note: it is unknown which DOM model future versions of Explorer will use $browser['dom'] = 'IE';} elseif ($type == 'Opera' && $vers >= 5) { $browser['dom'] = 'W3C';} elseif ($type == 'Netscape') { if ($vers >= 5) $browser['dom'] = 'W3C'; elseif ($vers >= 4) $browser['dom'] = 'NS';} // return array of answers return $browser;} $browser = SniffBrowser(); ?> if (($browser['type'] == 'Explorer') && ($browser['version'] <= 6)) { ?> } ?>