You should not rely on just this for cross-browser compatibility issues. Good practice would be to include HTML if-statements for IE stylesheets as well as dynamically checking the browser type.
get_browser
(PHP 4, PHP 5)
get_browser — ユーザのブラウザの機能を取得する
説明
mixed get_browser ( [string $user_agent [, bool $return_array]] )ユーザのブラウザの機能を調べます。これは、browscap.ini ファイルのブラウザ情報を調べることにより行います。
パラメータ
- user_agent
処理するユーザエージェント。デフォルトでは、HTTP の User-Agent ヘッダの内容を使用します。しかし、このパラメータを渡すことでこれを変更する (別のブラウザの情報を取得する) ことが可能です。
このパラメータを処理しないようにするには NULL 値を渡します。
- return_array
TRUE を指定すると、この関数はオブジェクトでなく配列を返します。
返り値
情報は、オブジェクトあるいは配列形式で返されます。 たとえばブラウザのメジャーバージョン番号、マイナーバージョン番号や ID 文字列といったさまざまなデータが含まれています。また、 フレームや JavaScript、クッキーといった機能についての TRUE/FALSE 値も含んでいます。
cookies の値は、単にそのブラウザがクッキーを扱う機能を 有していることを示すだけであり、ユーザがクッキーを受け入れる設定に しているかどうかを表すものではありません。それをチェックする唯一の方法は、 いったん setcookie() でクッキーを設定してからリロードし、 その値を調べることです。
変更履歴
| バージョン | 説明 |
|---|---|
| 4.3.2 | オプションのパラメータ return_array が追加されました。 |
例
例 1309. ユーザのブラウザについての全情報の一覧
<?php
echo $_SERVER['HTTP_USER_AGENT'] . "\n\n";
$browser = get_browser(null, true);
print_r($browser);
?>
上の例の出力は、たとえば 以下のようになります。
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040803 Firefox/0.9.3
Array
(
[browser_name_regex] => ^mozilla/5\.0 (windows; .; windows nt 5\.1; .*rv:.*) gecko/.* firefox/0\.9.*$
[browser_name_pattern] => Mozilla/5.0 (Windows; ?; Windows NT 5.1; *rv:*) Gecko/* Firefox/0.9*
[parent] => Firefox 0.9
[platform] => WinXP
[browser] => Firefox
[version] => 0.9
[majorver] => 0
[minorver] => 9
[css] => 2
[frames] => 1
[iframes] => 1
[tables] => 1
[cookies] => 1
[backgroundsounds] =>
[vbscript] =>
[javascript] => 1
[javaapplets] => 1
[activexcontrols] =>
[cdf] =>
[aol] =>
[beta] => 1
[win16] =>
[crawler] =>
[stripper] =>
[wap] =>
[netclr] =>
)
注意
注意: この関数が正常に機能するためには、php.ini の browscap 設定が、システム上の browscap.ini の正確な位置を 指している必要があります。
browscap.ini は PHP にはバンドルされていません。 しかし、ここで最新の » php_browscap.ini を入手することができます。
browscap.ini は多くのブラウザに関する情報をもっていますが、 データベースを最新に保つのはユーザーによる更新に依存しています。 ファイルのフォーマット自体を見ればおおよそのことがわかります。
get_browser
mike at mike-griffiths dot co dot uk
23-Jul-2007 06:41
23-Jul-2007 06:41
ansar dot ahmed at impelsys dot com
22-Mar-2007 07:01
22-Mar-2007 07:01
We are using get_browser() function for useragent Mozilla/4.0 (compatible; MSIE 4.01; Windows NT) the get_browser function is returning as Default Browser and Platform = unknown.
So i added this to my browscap.ini manually:
[Mozilla/4.0 (compatible; MSIE 4.01; Windows NT)]
Parent=IE 4.01
Platform=WinNT
sam
23-Oct-2006 07:09
23-Oct-2006 07:09
I thought this function might be useful to those without access to the php.ini file (such as those on a shared hosting system):
function php_get_browser($agent = NULL){
$agent=$agent?$agent:$_SERVER['HTTP_USER_AGENT'];
$yu=array();
$q_s=array("#\.#","#\*#","#\?#");
$q_r=array("\.",".*",".?");
$brows=parse_ini_file("php_browscap.ini",true);
foreach($brows as $k=>$t){
if(fnmatch($k,$agent)){
$yu['browser_name_pattern']=$k;
$pat=preg_replace($q_s,$q_r,$k);
$yu['browser_name_regex']=strtolower("^$pat$");
foreach($brows as $g=>$r){
if($t['Parent']==$g){
foreach($brows as $a=>$b){
if($r['Parent']==$a){
$yu=array_merge($yu,$b,$r,$t);
foreach($yu as $d=>$z){
$l=strtolower($d);
$hu[$l]=$z;
}
}
}
}
}
break;
}
}
return $hu;
}
define the location of php_browscap.ini wherever you want
always returns an array, same functionality as get_browser(NULL,true)
Hope someone finds it useful!
st DOT jonathan AT gmail DOT com
02-Oct-2006 04:36
02-Oct-2006 04:36
Here is a class I've created that supports an external browscap.ini file (configuration independent) and works faster than get_browser on multiple queries.
http://garetjax.info/projects/browscap/
adspeed.com
03-Sep-2005 02:06
03-Sep-2005 02:06
Here is what we do to fix the parsing error messages for php_browscap.ini downloaded from Gary's website.
<?php
// fix the browsecap.ini for php
$v= file_get_contents('php_browscap.ini');
$v= preg_replace("/\r/","",$v);
$v= preg_replace('/="(.*)"/i','=\\1',$v);
$v= preg_replace("/platform=(.*)/i","platform=\"\\1\"",$v);
$v= preg_replace("/parent=(.*)/i","parent=\"\\1\"",$v);
$v= preg_replace("/minorver=(.*)/i","minorver=\"\\1\"",$v);
$v= preg_replace("/majorver=(.*)/i","majorver=\"\\1\"",$v);
$v= preg_replace("/version=(.*)/i","version=\"\\1\"",$v);
$v= preg_replace("/browser=(.*)/i","browser=\"\\1\"",$v);
$v= str_replace("[*]","*",$v);
file_put_contents('browscap.ini',$v);
?>
pal at degerstrom dot com
26-Apr-2005 10:13
26-Apr-2005 10:13
This might be useful for some until the Gary Keith updates his library. I added this to my browscap.ini to detect the latest Safari update for Panther, and the new Safari in Tiger:
;;; Added manually 05.04.19 for Safari 1.3
[Mozilla/5.0 (Macintosh; U; PPC Mac OS X; *) AppleWebKit/* (*) Safari/31?]
parent=Safari
version=1.3
majorver=1
minorver=3
;;; Added manually 05.04.26 for Safari 2.0 (Shipped with Tiger)
[Mozilla/5.0 (Macintosh; U; PPC Mac OS X; *) AppleWebKit/* (*) Safari/41?]
parent=Safari
version=2.0
majorver=2
minorver=0
Note: Full $_SERVER['HTTP_USER_AGENT'] for Safari 2 (Tiger) is
Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/412 (KHTML, like Gecko) Safari/412
(Disclaimer: I do not know if the entries above conform to whatever syntax standard Gary uses in his file, but it works fine for me).
Pl Degerstrm
tectonikNOSPAM at free dot fr
07-Apr-2005 06:17
07-Apr-2005 06:17
Another (short) sequential php script to determine browsers family and version.
<?
// _______
// ----- | CONF. |
//
// add new browsers in lower case here, separated
// by spaces - order is important: from left to
// right browser family becomes more precise
$browsers = "mozilla msie gecko firefox ";
$browsers.= "konqueror safari netscape navigator ";
$browsers.= "opera mosaic lynx amaya omniweb";
// _______
// ----- |PROCESS|
//
$browsers = split(" ", $browsers);
$nua = strToLower( $_SERVER['HTTP_USER_AGENT']);
$l = strlen($nua);
for ($i=0; $i<count($browsers); $i++){
$browser = $browsers[$i];
$n = stristr($nua, $browser);
if(strlen($n)>0){
$GLOBALS["ver"] = "";
$GLOBALS["nav"] = $browser;
$j=strpos($nua, $GLOBALS["nav"])+$n+strlen($GLOBALS["nav"])+1;
for (; $j<=$l; $j++){
$s = substr ($nua, $j, 1);
if(is_numeric($GLOBALS["ver"].$s) )
$GLOBALS["ver"] .= $s;
else
break;
}
}
}
// _______
// ----- | USE |
//
echo("<pre>Your browser is: ");
echo($GLOBALS["nav"] . " " . $GLOBALS["ver"] . "</pre>");
?>
source: http://tectonik.free.fr/technos/php/
another%20PHP%20browser%20sniffer.php
hh
29-Jun-2004 04:19
29-Jun-2004 04:19
Another PHP browser detection script that might be of use to you is here:
http://tech.ratmachines.com/downloads/php_browser_detection.php
This script uses a fairly different logic than get_browser, and doesn't worry about things like table/frame ability. This script was being used by mozdev to id Mozilla versions, since it specializes in that kind of specialized id. It also has unix/linux version os iding.
max at phpexpert dot de
27-Mar-2004 12:14
27-Mar-2004 12:14
Be aware of the fact that this function shows what a specific browser might be able to show, but NOT what the user has turned on/off.
So maybe this function tells you that the browser is abel to to javascript even when javascript is turned off by the user.
bishop
06-Aug-2003 03:46
06-Aug-2003 03:46
PHP is sensitive to characters outside the range [ A-Za-z0-9_] as values in .ini files. For example
browser=Opera (Bork Version)
causes PHP to complain, as it doesn't like the parentheses.
If you place quotation marks around the values for all keys in the browscap.ini file, you'll save yourself parsing problems. Do this in eg vi with %s/=\(.*\)/="\1"/g
You could of course use PHP itself to fixup the file. Exercise left to the reader.
verx at implix dot com
09-Dec-2002 07:57
09-Dec-2002 07:57
Please keep in mind that you should somehow (for example in session) cache the required results of get_browser() because it really slows thinks down.
We have experienced that without querying for browser data our scripts would run 120-130% faster. the explanation is that over 200kb long file (browscap.ini) has to be loaded and parsed everytime someone access any page (we need browser results on all pages).
So keep results in session and expect a performance boost.
les at hazlewood dot com
04-Sep-2001 10:57
04-Sep-2001 10:57
phpSniff (noted in a few places above) is absolutely fantastic. I just installed it, and it is a godsend! It now handles all of my session information needed to go in my database. Thanks for you folks who posted that great Sourceforge resource! http://phpsniff.sourceforge.net/
philip at cornado dot com
26-Aug-2001 12:05
26-Aug-2001 12:05
A couple places that may interest you :
* http://phpbuilder.com/columns/tim20000821.php3
* http://sourceforge.net/projects/phpsniff/
nick at category4 dot com
13-Jun-2001 08:21
13-Jun-2001 08:21
Here's a quick way to test for a Netscape browser. IE and Konqueror and several others call themselves "Mozilla", but they always qualify it with the word "compatible."
$isns = stristr($HTTP_USER_AGENT, "Mozilla") && (!(stristr($HTTP_USER_AGENT, "compatible")));
triad at df dot lth dot se
31-Jul-2000 08:17
31-Jul-2000 08:17
The only way browscap examines the target browser is through the HTTP_USER_AGENT so there is no way you can determine installed plug-ins. The only way to do that is through client-side JavaScripts.
andysmith at post dot com
06-May-2000 06:04
06-May-2000 06:04
the example is great if you just want to spit out all that stuff, but i highly doubt anybody really wants to do that. To use the get_browser object in a conditional statement, do something like this:
$ua = get_browser ();
if ( ( $ua->browser == "Netscape" ) && ( $ua->version < 5 ) ) {
// code to fix the page for netscape :)
}