アクセス統計を取ろうと思い立ったは良いが、ユーザーのUser-Agent文字列が実にフリーダムな書式で書かれていてブラウザとOSを取得するのにエラい苦労しました。
せっかくなので、その苦労の結果をPHPコードとして残して置こうと思います。
言語： PHP5
返却値： 配列 （[0]:ブラウザ名 [1]:ブラウザバージョン [2]:OS [3]:OSバージョン）
※まだまだ調整中なのでそのまま使うとバージョン情報が取れない事が多いかと。
function useragent_analyser() {
$ua_string = $_SERVER["HTTP_USER_AGENT"];
$bws = ""; // [0]
$bwsver = ""; // [1]
$os = ""; // [2]
$osver = ""; // [3]
// ブラウザ判定
if (preg_match("/Opera[\s\/]\d\.\d{1,2}/", $ua_string, $matches)) {
$bws = "Opera";
$bwsver = substr($matches[0], strlen($bws) + 1, 3);
} else if (preg_match("/MSIE[\s\/]\d\.\d{1,2}/", $ua_string, $matches)) {
$bws = "MSIE";
$bwsver = substr($matches[0], strlen($bws) + 1, 3);
} else if (preg_match("/Firefox[\s\/]\d\.\d/", $ua_string, $matches)) {
$bws = "Firefox";
$bwsver = substr($matches[0], strlen($bws) + 1, 3);
} else if (preg_match("/Chrome[\s\/]\d\.\d/", $ua_string, $matches)) {
$bws = "Chrome";
$bwsver = substr($matches[0], strlen($bws) + 1, 3);
} else if (preg_match("/Safari/", $ua_string, $matches)) {
$bws = "Safari";
if (preg_match("/Version[\s\/]\d\.\d/", $ua_string, $saf_matches)) {
$bwsver = substr($saf_matches[0], strlen("Version") + 1, 1);
} else if (preg_match("/AppleWebKit[\s\/]4\d{2}/", $ua_string, $saf_matches)) {
$bwsver = 2;
}
} else if (preg_match("/Sleipnir[\s\/]\d\.\d/", $ua_string, $matches)) {
$bws = "Sleipnir";
$bwsver = substr($matches[0], strlen($bws) + 1, 3);
} else if (preg_match("/Konqueror[\s\/]\d\.\d/", $ua_string, $matches)) {
$bws = "Konqueror";
$bwsver = substr($matches[0], strlen($bws) + 1, 3);
} else if (stristr($ua_string, "Netscape") !== false) {
$bws = "Netscape";
if (preg_match("/Netscape\d/", $ua_string, $matches)) {
$bwsver = substr($matches[0], strlen($bws), 1);
} else if (preg_match("/Netscape[\s\/]\d\.\d{1,2}/", $ua_string, $matches)) {
$bwsver = substr($matches[0], strlen($bws) + 1, 1);
}
} else if (preg_match("/DoCoMo[\s\/]\d\.\d/", $ua_string, $matches)) {
$bws = "DoCoMo";
$bwsver = substr($matches[0], strlen($bws) + 1, 3);
} else if (preg_match("/KDDI/", $ua_string, $matches)) {
$bws = "KDDI";
} else if (preg_match("/J-PHONE[\s\/]\d\.\d//", $ua_string, $matches)) {
$bws = "J-PHONE";
$bwsver = substr($matches[0], strlen($bws) + 1, 3);
} else if (preg_match("/SoftBank[\s\/]\d\.\d//", $ua_string, $matches)) {
$bws = "SoftBank";
$bwsver = substr($matches[0], strlen($bws) + 1, 3);
} else if (preg_match("/Mozilla[\s\/]\d\.\d/", $ua_string, $matches)) {
$bws = "Mozilla";
$bwsver = substr($matches[0], strlen($bws) + 1, 3);
}
// OS判定
if (stristr($ua_string, "Linux") !== false) {
$os = "Linux";
} else if (stristr($ua_string, "BSD") !== false) {
if (stristr($ua_string, "FreeBSD") !== false) {
$os = "FreeBSD";
} else {
$os = "BSD";
}
} else if (stristr($ua_string, "SunOS") !== false) {
$os = "SunOS";
if (preg_match("/SunOS[\s\/]\d\.\d/", $ua_string, $matches)) {
$osver = substr($matches[0], strlen($os) + 1, 3);
}
$os = "Solaris";
} else if (preg_match("/Win[dN9][oT58]/", $ua_string, $matches)) {
$os = "Windows";
if (stristr($ua_string, "Windows NT 5.0") !== false) {
$osver = "2000";
} else if (stristr($ua_string, "Windows 2000") !== false) {
$osver = "2000";
} else if (stristr($ua_string, "Windows NT 5.1") !== false) {
$osver = "XP";
} else if (stristr($ua_string, "Windows NT 5.2") !== false) {
$osver = "2003";
} else if (stristr($ua_string, "Windows XP") !== false) {
$osver = "XP";
} else if (stristr($ua_string, "Windows NT 6.0") !== false) {
$osver = "Vista";
} else if (stristr($ua_string, "Windows NT 6.1") !== false) {
$osver = "7";
} else if (stristr($ua_string, "Windows 98") !== false) {
$osver = "98";
} else if (stristr($ua_string, "Windows 95") !== false) {
$osver = "95";
} else if (stristr($ua_string, "Windows Me") !== false) {
$osver = "Me";
} else if (stristr($ua_string, "Windows NT") !== false) {
$osver = "NT";
} else if (stristr($ua_string, "Win95") !== false) {
$osver = "95";
} else if (stristr($ua_string, "Win98") !== false) {
$osver = "98";
} else if (stristr($ua_string, "WinNT") !== false) {
$osver = "NT";
}
} else if (stristr($ua_string, "Mac") !== false) {
if (stristr($ua_string, "iPod") !== false) {
$os = "iPod";
} else if (stristr($ua_string, "iPhone") !== false) {
$os = "iPhone";
} else if (stristr($ua_string, "iPad") !== false) {
$os = "iPad";
} else if (stristr($ua_string, "Mac OS X") !== false) {
$os = "MacOS";
$osver = "X";
} else {
$os = "MacOS";
}
} else if (stristr($ua_string, "Nintendo") !== false) {
$os = "Nintendo";
} else if (stristr($ua_string, "PlayStation") !== false) {
$os = "PlayStation";
} else if (stristr($ua_string, "DreamPassport") !== false) {
$os = "DreamPassport";
}
// 返却値
return array($bws, $bwsver, $os, $osver);
}