function browser_detection($which_test)
{
// initialize variables
$browser_name = '';
$browser_number = '';
// get userAgent string
$browser_user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? strtolower($_SERVER['HTTP_USER_AGENT']) : '';
//pack browser array
// values [0]= user agent identifier, lowercase, [1] = dom browser, [2] = shorthand for browser,
$a_browser_types[] = array('opera', true, 'op');
$a_browser_types[] = array('msie', true, 'ie');
$a_browser_types[] = array('konqueror', true, 'konq');
$a_browser_types[] = array('safari', true, 'saf');
$a_browser_types[] = array('gecko', true, 'moz');
$a_browser_types[] = array('mozilla/4', false, 'ns4');
for ($i = 0; $i < count($a_browser_types); $i++) {
$s_browser = $a_browser_types[$i][0];
$b_dom = $a_browser_types[$i][1];
$browser_name = $a_browser_types[$i][2];
// if the string identifier is found in the string
if (stristr($browser_user_agent, $s_browser)) {
// we are in this case actually searching for the 'rv' string, not the gecko string
// this test will fail on Galeon, since it has no rv number. You can change this to
// searching for 'gecko' if you want, that will return the release date of the browser
if ($browser_name == 'moz') {
$s_browser = 'rv';
}
$browser_number = browser_version($browser_user_agent, $s_browser);
break;
}
}
// which variable to return
if ($which_test == 'browser') {
return $browser_name;
} elseif ($which_test == 'number') {
return $browser_number;
} elseif ($which_test == 'full') {
$a_browser_info = array($browser_name, $browser_number);
return $a_browser_info;
}
}
function browser_detection($which_test)
{
static $dom_browser, $safe_browser, $browser_user_agent, $os, $browser_name, $s_browser, $ie_version, $version_number, $os_number, $b_repeat, $moz_version, $moz_version_number, $moz_rv, $moz_rv_full, $moz_release, $type, $math_version_number;
if (!$b_repeat) {
$dom_browser = false;
$type = 'bot';
// default to bot since you never know with bots
$safe_browser = false;
$os = '';
$os_number = '';
$a_os_data = '';
$browser_name = '';
$version_number = '';
$math_version_number = '';
$ie_version = '';
$moz_version = '';
$moz_version_number = '';
$moz_rv = '';
$moz_rv_full = '';
$moz_release = '';
$b_success = false;
// boolean for if browser found in main test
$browser_user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? strtolower($_SERVER['HTTP_USER_AGENT']) : '';
$a_browser_types[] = array('opera', true, 'op', 'bro');
$a_browser_types[] = array('omniweb', true, 'omni', 'bro');
// mac osx browser, now uses khtml engine:
$a_browser_types[] = array('msie', true, 'ie', 'bro');
$a_browser_types[] = array('konqueror', true, 'konq', 'bro');
$a_browser_types[] = array('safari', true, 'saf', 'bro');
$a_browser_types[] = array('gecko', true, 'moz', 'bro');
$a_browser_types[] = array('netpositive', false, 'netp', 'bbro');
// beos browser
$a_browser_types[] = array('lynx', false, 'lynx', 'bbro');
// command line browser
$a_browser_types[] = array('elinks ', false, 'elinks', 'bbro');
// new version of links
$a_browser_types[] = array('elinks', false, 'elinks', 'bbro');
// alternate id for it
$a_browser_types[] = array('links ', false, 'links', 'bbro');
// old name for links
$a_browser_types[] = array('links', false, 'links', 'bbro');
// alternate id for it
$a_browser_types[] = array('w3m', false, 'w3m', 'bbro');
// open source browser, more features than lynx/links
$a_browser_types[] = array('webtv', false, 'webtv', 'bbro');
// junk ms webtv
$a_browser_types[] = array('amaya', false, 'amaya', 'bbro');
// w3c browser
$a_browser_types[] = array('dillo', false, 'dillo', 'bbro');
// linux browser, basic table support
$a_browser_types[] = array('ibrowse', false, 'ibrowse', 'bbro');
// amiga browser
$a_browser_types[] = array('icab', false, 'icab', 'bro');
// mac browser
$a_browser_types[] = array('crazy browser', true, 'ie', 'bro');
// uses ie rendering engine
$a_browser_types[] = array('sonyericssonp800', false, 'sonyericssonp800', 'bbro');
// sony ericsson handheld
$a_browser_types[] = array('googlebot', false, 'google', 'bot');
// google
$a_browser_types[] = array('mediapartners-google', false, 'adsense', 'bot');
// google adsense
$a_browser_types[] = array('yahoo-verticalcrawler', false, 'yahoo', 'bot');
// old yahoo bot
$a_browser_types[] = array('yahoo! slurp', false, 'yahoo', 'bot');
// new yahoo bot
$a_browser_types[] = array('yahoo-mm', false, 'yahoomm', 'bot');
// gets Yahoo-MMCrawler and Yahoo-MMAudVid bots
$a_browser_types[] = array('inktomi', false, 'inktomi', 'bot');
// inktomi bot
$a_browser_types[] = array('slurp', false, 'inktomi', 'bot');
// inktomi bot
$a_browser_types[] = array('fast-webcrawler', false, 'fast', 'bot');
// Fast AllTheWeb
$a_browser_types[] = array('msnbot', false, 'msn', 'bot');
// msn search
$a_browser_types[] = array('ask jeeves', false, 'ask', 'bot');
//jeeves/teoma
$a_browser_types[] = array('teoma', false, 'ask', 'bot');
//jeeves teoma
$a_browser_types[] = array('scooter', false, 'scooter', 'bot');
// altavista
$a_browser_types[] = array('openbot', false, 'openbot', 'bot');
// openbot, from taiwan
$a_browser_types[] = array('ia_archiver', false, 'ia_archiver', 'bot');
// ia archiver
$a_browser_types[] = array('zyborg', false, 'looksmart', 'bot');
// looksmart
$a_browser_types[] = array('almaden', false, 'ibm', 'bot');
// ibm almaden web crawler
$a_browser_types[] = array('baiduspider', false, 'baidu', 'bot');
// Baiduspider asian search spider
$a_browser_types[] = array('psbot', false, 'psbot', 'bot');
// psbot image crawler
$a_browser_types[] = array('gigabot', false, 'gigabot', 'bot');
// gigabot crawler
$a_browser_types[] = array('naverbot', false, 'naverbot', 'bot');
// naverbot crawler, bad bot, block
$a_browser_types[] = array('surveybot', false, 'surveybot', 'bot');
//
$a_browser_types[] = array('boitho.com-dc', false, 'boitho', 'bot');
//norwegian search engine
$a_browser_types[] = array('objectssearch', false, 'objectsearch', 'bot');
// open source search engine
$a_browser_types[] = array('answerbus', false, 'answerbus', 'bot');
// http://www.answerbus.com/, web questions
$a_browser_types[] = array('sohu-search', false, 'sohu', 'bot');
// chinese media company, search component
$a_browser_types[] = array('iltrovatore-setaccio', false, 'il-set', 'bot');
$a_browser_types[] = array('w3c_validator', false, 'w3c', 'lib');
// uses libperl, make first
$a_browser_types[] = array('wdg_validator', false, 'wdg', 'lib');
//
$a_browser_types[] = array('libwww-perl', false, 'libwww-perl', 'lib');
$a_browser_types[] = array('jakarta commons-httpclient', false, 'jakarta', 'lib');
$a_browser_types[] = array('python-urllib', false, 'python-urllib', 'lib');
$a_browser_types[] = array('getright', false, 'getright', 'dow');
$a_browser_types[] = array('wget', false, 'wget', 'dow');
// open source downloader, obeys robots.txt
$a_browser_types[] = array('mozilla/4.', false, 'ns', 'bbro');
$a_browser_types[] = array('mozilla/3.', false, 'ns', 'bbro');
$a_browser_types[] = array('mozilla/2.', false, 'ns', 'bbro');
$moz_types = array('firebird', 'phoenix', 'firefox', 'iceweasel', 'galeon', 'k-meleon', 'camino', 'epiphany', 'netscape6', 'netscape', 'multizilla', 'rv');
$i_count = count($a_browser_types);
for ($i = 0; $i < $i_count; $i++) {
$s_browser = $a_browser_types[$i][0];
// text string to id browser from array
if (stristr($browser_user_agent, $s_browser)) {
$safe_browser = true;
// assign values based on match of user agent string
$dom_browser = $a_browser_types[$i][1];
// hardcoded dom support from array
$browser_name = $a_browser_types[$i][2];
// working name for browser
$type = $a_browser_types[$i][3];
// sets whether bot or browser
switch ($browser_name) {
case 'ns':
$safe_browser = false;
$version_number = browser_version($browser_user_agent, 'mozilla');
break;
case 'moz':
$moz_rv_full = browser_version($browser_user_agent, 'rv');
// this slices them back off for math comparisons
$moz_rv = substr($moz_rv_full, 0, 3);
// this is to pull out specific mozilla versions, firebird, netscape etc..
$i_count = count($moz_types);
for ($i = 0; $i < $i_count; $i++) {
if (stristr($browser_user_agent, $moz_types[$i])) {
$moz_version = $moz_types[$i];
$moz_version_number = browser_version($browser_user_agent, $moz_version);
break;
}
}
if (!$moz_rv) {
$moz_rv = substr($moz_version_number, 0, 3);
$moz_rv_full = $moz_version_number;
}
if ($moz_version == 'rv') {
$moz_version = 'mozilla';
}
$version_number = $moz_rv;
$moz_release = browser_version($browser_user_agent, 'gecko/');
if ($moz_release < 20020400 || $moz_rv < 1) {
$safe_browser = false;
}
break;
case 'ie':
$version_number = browser_version($browser_user_agent, $s_browser);
if (stristr($browser_user_agent, 'mac')) {
$ie_version = 'ieMac';
} elseif ($version_number >= 5) {
$ie_version = 'ie5x';
} elseif ($version_number > 3 && $version_number < 5) {
$dom_browser = false;
$ie_version = 'ie4';
// this depends on what you're using the script for, make sure this fits your needs
$safe_browser = true;
} else {
$ie_version = 'old';
$dom_browser = false;
$safe_browser = false;
}
break;
case 'op':
$version_number = browser_version($browser_user_agent, $s_browser);
if ($version_number < 5) {
$safe_browser = false;
}
break;
case 'saf':
$version_number = browser_version($browser_user_agent, $s_browser);
break;
default:
$version_number = browser_version($browser_user_agent, $s_browser);
break;
}
$b_success = true;
break;
}
}
if (!$b_success) {
$s_browser = substr($browser_user_agent, 0, strcspn($browser_user_agent, '();'));
ereg('[^0-9][a-z]*-*\\ *[a-z]*\\ *[a-z]*', $s_browser, $r);
$s_browser = $r[0];
$version_number = browser_version($browser_user_agent, $s_browser);
}
$a_os_data = which_os($browser_user_agent, $browser_name, $version_number);
$os = $a_os_data[0];
// os name, abbreviated
$os_number = $a_os_data[1];
// os number or version if available
// this ends the run through once if clause, set the boolean
//to true so the function won't retest everything
$b_repeat = true;
// pulls out primary version number from more complex string, like 7.5a,
// use this for numeric version comparison
$m = array();
if (ereg('[0-9]*\\.*[0-9]*', $version_number, $m)) {
$math_version_number = $m[0];
//print_r($m);
}
}
switch ($which_test) {
case 'safe':
// returns true/false if your tests determine it's a safe browser
return $safe_browser;
break;
case 'ie_version':
// returns ieMac or ie5x
return $ie_version;
break;
case 'moz_version':
// returns array of all relevant moz information
$moz_array = array($moz_version, $moz_version_number, $moz_rv, $moz_rv_full, $moz_release);
return $moz_array;
break;
case 'dom':
// returns true/fale if a DOM capable browser
return $dom_browser;
break;
case 'os':
// returns os name
return $os;
break;
case 'os_number':
// returns os number if windows
return $os_number;
break;
case 'browser':
// returns browser name
return $browser_name;
break;
case 'number':
// returns browser number
return $version_number;
break;
case 'full':
// returns all relevant browser information in an array
$full_array = array($browser_name, $version_number, $ie_version, $dom_browser, $safe_browser, $os, $os_number, $s_browser, $type, $math_version_number);
return $full_array;
break;
case 'type':
// returns what type, bot, browser, maybe downloader in future
return $type;
break;
case 'math_number':
// returns numerical version number, for number comparisons
return $math_version_number;
break;
default:
break;
}
}
function browser_detection($which_test)
{
/*
uncomment the global variable declaration if you want the variables to be available on a global level
throughout your php page, make sure that php is configured to support the use of globals first!
Use of globals should be avoided however, and they are not necessary with this script
*/
/*global $dom_browser, $safe_browser, $browser_user_agent, $os, $browser_name, $s_browser, $ie_version,
$version_number, $os_number, $b_repeat, $moz_version, $moz_version_number, $moz_rv, $moz_rv_full, $moz_release;*/
static $dom_browser, $safe_browser, $browser_user_agent, $os, $browser_name, $s_browser, $ie_version, $version_number, $os_number, $b_repeat, $moz_version, $moz_version_number, $moz_rv, $moz_rv_full, $moz_release, $type, $math_version_number;
/*
this makes the test only run once no matter how many times you call it
since all the variables are filled on the first run through, it's only a matter of returning the
the right ones
*/
if (!$b_repeat) {
//initialize all variables with default values to prevent error
$dom_browser = false;
$type = 'bot';
// default to bot since you never know with bots
$safe_browser = false;
$os = '';
$os_number = '';
$a_os_data = '';
$browser_name = '';
$version_number = '';
$math_version_number = '';
$ie_version = '';
$moz_version = '';
$moz_version_number = '';
$moz_rv = '';
$moz_rv_full = '';
$moz_release = '';
$b_success = false;
// boolean for if browser found in main test
//make navigator user agent string lower case to make sure all versions get caught
// isset protects against blank user agent failure
$browser_user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? strtolower($_SERVER['HTTP_USER_AGENT']) : '';
/*
pack the browser type array, in this order
the order is important, because opera must be tested first, then omniweb [which has safari data in string],
same for konqueror, then safari, then gecko, since safari navigator user agent id's with 'gecko' in string.
note that $dom_browser is set for all modern dom browsers, this gives you a default to use.
array[0] = id string for useragent, array[1] is if dom capable, array[2] is working name for browser,
array[3] identifies navigator useragent type
Note: all browser strings are in lower case to match the strtolower output, this avoids possible detection
errors
Note: There are currently 5 navigator user agent types:
bro - modern, css supporting browser.
bbro - basic browser, text only, table only, defective css implementation
bot - search type spider
dow - known download agent
lib - standard http libraries
*/
// known browsers, list will be updated routinely, check back now and then
$a_browser_types[] = array('opera', true, 'op', 'bro');
$a_browser_types[] = array('omniweb', true, 'omni', 'bro');
// mac osx browser, now uses khtml engine:
$a_browser_types[] = array('msie', true, 'ie', 'bro');
$a_browser_types[] = array('konqueror', true, 'konq', 'bro');
$a_browser_types[] = array('safari', true, 'saf', 'bro');
// covers Netscape 6-7, K-Meleon, Most linux versions, uses moz array below
$a_browser_types[] = array('gecko', true, 'moz', 'bro');
$a_browser_types[] = array('netpositive', false, 'netp', 'bbro');
// beos browser
$a_browser_types[] = array('lynx', false, 'lynx', 'bbro');
// command line browser
$a_browser_types[] = array('elinks ', false, 'elinks', 'bbro');
// new version of links
$a_browser_types[] = array('elinks', false, 'elinks', 'bbro');
// alternate id for it
$a_browser_types[] = array('links ', false, 'links', 'bbro');
// old name for links
$a_browser_types[] = array('links', false, 'links', 'bbro');
// alternate id for it
$a_browser_types[] = array('w3m', false, 'w3m', 'bbro');
// open source browser, more features than lynx/links
$a_browser_types[] = array('webtv', false, 'webtv', 'bbro');
// junk ms webtv
$a_browser_types[] = array('amaya', false, 'amaya', 'bbro');
// w3c browser
$a_browser_types[] = array('dillo', false, 'dillo', 'bbro');
// linux browser, basic table support
$a_browser_types[] = array('ibrowse', false, 'ibrowse', 'bbro');
// amiga browser
$a_browser_types[] = array('icab', false, 'icab', 'bro');
// mac browser
$a_browser_types[] = array('crazy browser', true, 'ie', 'bro');
// uses ie rendering engine
$a_browser_types[] = array('sonyericssonp800', false, 'sonyericssonp800', 'bbro');
// sony ericsson handheld
// search engine spider bots:
$a_browser_types[] = array('googlebot', false, 'google', 'bot');
// google
$a_browser_types[] = array('mediapartners-google', false, 'adsense', 'bot');
// google adsense
$a_browser_types[] = array('yahoo-verticalcrawler', false, 'yahoo', 'bot');
// old yahoo bot
$a_browser_types[] = array('yahoo! slurp', false, 'yahoo', 'bot');
// new yahoo bot
$a_browser_types[] = array('yahoo-mm', false, 'yahoomm', 'bot');
// gets Yahoo-MMCrawler and Yahoo-MMAudVid bots
$a_browser_types[] = array('inktomi', false, 'inktomi', 'bot');
// inktomi bot
$a_browser_types[] = array('slurp', false, 'inktomi', 'bot');
// inktomi bot
$a_browser_types[] = array('fast-webcrawler', false, 'fast', 'bot');
// Fast AllTheWeb
$a_browser_types[] = array('msnbot', false, 'msn', 'bot');
// msn search
$a_browser_types[] = array('ask jeeves', false, 'ask', 'bot');
//jeeves/teoma
$a_browser_types[] = array('teoma', false, 'ask', 'bot');
//jeeves teoma
$a_browser_types[] = array('scooter', false, 'scooter', 'bot');
// altavista
$a_browser_types[] = array('openbot', false, 'openbot', 'bot');
// openbot, from taiwan
$a_browser_types[] = array('ia_archiver', false, 'ia_archiver', 'bot');
// ia archiver
$a_browser_types[] = array('zyborg', false, 'looksmart', 'bot');
// looksmart
$a_browser_types[] = array('almaden', false, 'ibm', 'bot');
// ibm almaden web crawler
$a_browser_types[] = array('baiduspider', false, 'baidu', 'bot');
// Baiduspider asian search spider
$a_browser_types[] = array('psbot', false, 'psbot', 'bot');
// psbot image crawler
$a_browser_types[] = array('gigabot', false, 'gigabot', 'bot');
// gigabot crawler
$a_browser_types[] = array('naverbot', false, 'naverbot', 'bot');
// naverbot crawler, bad bot, block
$a_browser_types[] = array('surveybot', false, 'surveybot', 'bot');
//
$a_browser_types[] = array('boitho.com-dc', false, 'boitho', 'bot');
//norwegian search engine
$a_browser_types[] = array('objectssearch', false, 'objectsearch', 'bot');
// open source search engine
$a_browser_types[] = array('answerbus', false, 'answerbus', 'bot');
// http://www.answerbus.com/, web questions
$a_browser_types[] = array('sohu-search', false, 'sohu', 'bot');
// chinese media company, search component
$a_browser_types[] = array('iltrovatore-setaccio', false, 'il-set', 'bot');
// various http utility libaries
$a_browser_types[] = array('w3c_validator', false, 'w3c', 'lib');
// uses libperl, make first
$a_browser_types[] = array('wdg_validator', false, 'wdg', 'lib');
//
$a_browser_types[] = array('libwww-perl', false, 'libwww-perl', 'lib');
$a_browser_types[] = array('jakarta commons-httpclient', false, 'jakarta', 'lib');
$a_browser_types[] = array('python-urllib', false, 'python-urllib', 'lib');
// download apps
$a_browser_types[] = array('getright', false, 'getright', 'dow');
$a_browser_types[] = array('wget', false, 'wget', 'dow');
// open source downloader, obeys robots.txt
// netscape 4 and earlier tests, put last so spiders don't get caught
$a_browser_types[] = array('mozilla/4.', false, 'ns', 'bbro');
$a_browser_types[] = array('mozilla/3.', false, 'ns', 'bbro');
$a_browser_types[] = array('mozilla/2.', false, 'ns', 'bbro');
//$a_browser_types[] = array( '', false ); // browser array template
/*
moz types array
note the order, netscape6 must come before netscape, which is how netscape 7 id's itself.
rv comes last in case it is plain old mozilla
*/
$moz_types = array('firebird', 'phoenix', 'firefox', 'iceweasel', 'galeon', 'k-meleon', 'camino', 'epiphany', 'netscape6', 'netscape', 'multizilla', 'swiftfox', 'rv');
/*
run through the browser_types array, break if you hit a match, if no match, assume old browser
or non dom browser, assigns false value to $b_success.
Topherbyte pointed out that looping a count counts each time, so that's fixed
*/
$i_count = count($a_browser_types);
for ($i = 0; $i < $i_count; $i++) {
//unpacks browser array, assigns to variables
$s_browser = $a_browser_types[$i][0];
// text string to id browser from array
if (stristr($browser_user_agent, $s_browser)) {
// it defaults to true, will become false below if needed
// this keeps it easier to keep track of what is safe, only
//explicit false assignment will make it false.
$safe_browser = true;
// assign values based on match of user agent string
$dom_browser = $a_browser_types[$i][1];
// hardcoded dom support from array
$browser_name = $a_browser_types[$i][2];
// working name for browser
$type = $a_browser_types[$i][3];
// sets whether bot or browser
switch ($browser_name) {
// this is modified quite a bit, now will return proper netscape version number
// check your implementation to make sure it works
case 'ns':
$safe_browser = false;
$version_number = browser_version($browser_user_agent, 'mozilla');
break;
case 'moz':
/*
note: The 'rv' test is not absolute since the rv number is very different on
different versions, for example Galean doesn't use the same rv version as Mozilla,
neither do later Netscapes, like 7.x. For more on this, read the full mozilla numbering
conventions here:
http://www.mozilla.org/releases/cvstags.html
*/
// this will return alpha and beta version numbers, if present
$moz_rv_full = browser_version($browser_user_agent, 'rv');
// this slices them back off for math comparisons
$moz_rv = substr($moz_rv_full, 0, 3);
// this is to pull out specific mozilla versions, firebird, netscape etc..
$i_count = count($moz_types);
for ($i = 0; $i < $i_count; $i++) {
if (stristr($browser_user_agent, $moz_types[$i])) {
$moz_version = $moz_types[$i];
$moz_version_number = browser_version($browser_user_agent, $moz_version);
break;
}
}
// this is necesary to protect against false id'ed moz'es and new moz'es.
// this corrects for galeon, or any other moz browser without an rv number
if (!$moz_rv) {
$moz_rv = substr($moz_version_number, 0, 3);
$moz_rv_full = $moz_version_number;
/*
// you can use this instead if you are running php >= 4.2
$moz_rv = floatval( $moz_version_number );
$moz_rv_full = $moz_version_number;
*/
}
// this corrects the version name in case it went to the default 'rv' for the test
if ($moz_version == 'rv') {
$moz_version = 'mozilla';
}
//the moz version will be taken from the rv number, see notes above for rv problems
$version_number = $moz_rv;
// gets the actual release date, necessary if you need to do functionality tests
$moz_release = browser_version($browser_user_agent, 'gecko/');
/*
Test for mozilla 0.9.x / netscape 6.x
test your javascript/CSS to see if it works in these mozilla releases, if it does, just default it to:
$safe_browser = true;
*/
if ($moz_release < 20020400 || $moz_rv < 1) {
$safe_browser = false;
}
break;
case 'ie':
$version_number = browser_version($browser_user_agent, $s_browser);
// first test for IE 5x mac, that's the most problematic IE out there
if (stristr($browser_user_agent, 'mac')) {
$ie_version = 'ieMac';
} elseif ($version_number >= 5) {
$ie_version = 'ie5x';
} elseif ($version_number > 3 && $version_number < 5) {
$dom_browser = false;
$ie_version = 'ie4';
// this depends on what you're using the script for, make sure this fits your needs
$safe_browser = true;
} else {
$ie_version = 'old';
$dom_browser = false;
$safe_browser = false;
}
break;
case 'op':
$version_number = browser_version($browser_user_agent, $s_browser);
if ($version_number < 5) {
$safe_browser = false;
}
break;
case 'saf':
$version_number = browser_version($browser_user_agent, $s_browser);
break;
/*
Uncomment this section if you want omniweb to return the safari value
Omniweb uses khtml/safari rendering engine, so you can treat it like
safari if you want.
*/
/*
case 'omni':
$s_browser = 'safari';
$browser_name = 'saf';
$version_number = browser_version( $browser_user_agent, 'applewebkit' );
break;
*/
/*
Uncomment this section if you want omniweb to return the safari value
Omniweb uses khtml/safari rendering engine, so you can treat it like
safari if you want.
*/
/*
case 'omni':
$s_browser = 'safari';
$browser_name = 'saf';
$version_number = browser_version( $browser_user_agent, 'applewebkit' );
break;
*/
default:
$version_number = browser_version($browser_user_agent, $s_browser);
break;
}
// the browser was id'ed
$b_success = true;
break;
}
}
//assigns defaults if the browser was not found in the loop test
if (!$b_success) {
/*
this will return the first part of the browser string if the above id's failed
usually the first part of the browser string has the navigator useragent name/version in it.
This will usually correctly id the browser and the browser number if it didn't get
caught by the above routine.
If you want a '' to do a if browser == '' type test, just comment out all lines below
except for the last line, and uncomment the last line. If you want undefined values,
the browser_name is '', you can always test for that
*/
// delete this part if you want an unknown browser returned
$s_browser = substr($browser_user_agent, 0, strcspn($browser_user_agent, '();'));
// this extracts just the browser name from the string
ereg('[^0-9][a-z]*-*\\ *[a-z]*\\ *[a-z]*', $s_browser, $r);
$s_browser = $r[0];
$version_number = browser_version($browser_user_agent, $s_browser);
// then uncomment this part
//$s_browser = '';//deletes the last array item in case the browser was not a match
}
// get os data, mac os x test requires browser/version information, this is a change from older scripts
$a_os_data = which_os($browser_user_agent, $browser_name, $version_number);
$os = $a_os_data[0];
// os name, abbreviated
$os_number = $a_os_data[1];
// os number or version if available
// this ends the run through once if clause, set the boolean
//to true so the function won't retest everything
$b_repeat = true;
// pulls out primary version number from more complex string, like 7.5a,
// use this for numeric version comparison
$m = array();
if (ereg('[0-9]*\\.*[0-9]*', $version_number, $m)) {
$math_version_number = $m[0];
//print_r($m);
}
}
//$version_number = $_SERVER["REMOTE_ADDR"];
/*
This is where you return values based on what parameter you used to call the function
$which_test is the passed parameter in the initial browser_detection('os') for example call
*/
switch ($which_test) {
case 'safe':
// returns true/false if your tests determine it's a safe browser
// you can change the tests to determine what is a safeBrowser for your scripts
// in this case sub rv 1 Mozillas and Netscape 4x's trigger the unsafe condition
return $safe_browser;
break;
case 'ie_version':
// returns ieMac or ie5x
return $ie_version;
break;
case 'moz_version':
// returns array of all relevant moz information
$moz_array = array($moz_version, $moz_version_number, $moz_rv, $moz_rv_full, $moz_release);
return $moz_array;
break;
case 'dom':
// returns true/fale if a DOM capable browser
return $dom_browser;
break;
case 'os':
// returns os name
return $os;
break;
case 'os_number':
// returns os number if windows
return $os_number;
break;
case 'browser':
// returns browser name
return $browser_name;
break;
case 'number':
// returns browser number
return $version_number;
break;
case 'full':
// returns all relevant browser information in an array
$full_array = array($browser_name, $version_number, $ie_version, $dom_browser, $safe_browser, $os, $os_number, $s_browser, $type, $math_version_number);
return $full_array;
break;
case 'type':
// returns what type, bot, browser, maybe downloader in future
return $type;
break;
case 'math_number':
// returns numerical version number, for number comparisons
return $math_version_number;
break;
default:
break;
}
}
function browser_detection($which_test)
{
/*
uncomment the global variable declaration if you want the variables to be available on a global level
throughout your php page, make sure that php is configured to support the use of globals first!
Use of globals should be avoided however, and they are not necessary with this script
*/
/*global $dom_browser, $safe_browser, $browser_user_agent, $os, $browser_name, $ie_version,
$version_number, $os_number, $b_repeat, $moz_version, $moz_version_number, $moz_rv, $moz_rv_full, $moz_release;*/
static $dom_browser, $safe_browser, $browser_user_agent, $os, $browser_name, $ie_version, $version_number, $os_number, $b_repeat, $moz_version, $moz_version_number, $moz_rv, $moz_rv_full, $moz_release;
/*
this makes the test only run once no matter how many times you call it
since all the variables are filled on the first run through, it's only a matter of returning the
the right ones
*/
if (!$b_repeat) {
//initialize all variables with default values to prevent error
$dom_browser = false;
$safe_browser = false;
$os = '';
$os_number = '';
$a_os_data = '';
$browser_name = '';
$version_number = '';
$ie_version = '';
$moz_version = '';
$moz_version_number = '';
$moz_rv = '';
$moz_rv_full = '';
$moz_release = '';
//make navigator user agent string lower case to make sure all versions get caught
$browser_user_agent = strtolower($_SERVER['HTTP_USER_AGENT']);
$a_os_data = which_os($browser_user_agent);
// get os/number array
$os = $a_os_data[0];
// os name, abbreviated
$os_number = $a_os_data[1];
// os number if windows
/*
pack the browser type array, in this order
the order is important, because opera must be tested first, and ie4 tested for before ie general
same for konqueror, then safari, then gecko, since safari navigator user agent id's with 'gecko' in string.
note that $dom_browser is set for all modern dom browsers, this gives you a default to use.
array[0] = id string for useragent, array[1] is if dom capable, array[2] is working name for browser
Note: all browser strings are in lower case to match the strtolower output, this avoids possible detection
errors
*/
$a_browser_types[] = array('opera', true, 'op');
$a_browser_types[] = array('msie', true, 'ie');
$a_browser_types[] = array('konqueror', true, 'konq');
$a_browser_types[] = array('safari', true, 'saf');
// covers Netscape 6-7, K-Meleon, Most linux versions
// the 3 is for the rv: number, the release date is hardcoded
$a_browser_types[] = array('gecko', true, 'moz');
// netscape 4 test: this has to be last or else ie or opera might register true
$a_browser_types[] = array('mozilla/4', false, 'ns4');
$a_browser_types[] = array('lynx', false, 'lynx');
$a_browser_types[] = array('webtv', true, 'webtv');
// search engine spider bots:
$a_browser_types[] = array('googlebot', false, 'google');
// google
$a_browser_types[] = array('fast-webcrawler', false, 'fast');
// Fast AllTheWeb
$a_browser_types[] = array('msnbot', false, 'msn');
// msn search
$a_browser_types[] = array('scooter', false, 'scooter');
// altavista
//$a_browser_types[] = array( '', false ); // browser array template
/*
moz types array
note the order, netscape6 must come before netscape, which is how netscape 7 id's itself.
rv comes last in case it is plain old mozilla
*/
$moz_types = array('firebird', 'phoenix', 'firefox', 'galeon', 'k-meleon', 'camino', 'netscape6', 'netscape', 'rv');
/*
run through the browser_types array, break if you hit a match, if no match, assume old browser
or non dom browser, assigns false value to $b_success.
*/
for ($i = 0; $i < count($a_browser_types); $i++) {
//unpacks browser array, assigns to variables
$s_browser = $a_browser_types[$i][0];
// text string to id browser from array
$b_dom = $a_browser_types[$i][1];
// hardcoded dom support from array
$browser_name = $a_browser_types[$i][2];
// working name for browser
$b_success = false;
if (stristr($browser_user_agent, $s_browser)) {
// it defaults to true, will become false below if needed
// this keeps it easier to keep track of what is safe, only explicit false assignment will make it false.
$safe_browser = true;
switch ($browser_name) {
case 'ns4':
$safe_browser = false;
break;
case 'moz':
/*
note: The 'rv' test is not absolute since the rv number is very different on
different versions, for example Galean doesn't use the same rv version as Mozilla,
neither do later Netscapes, like 7.x. For more on this, read the full mozilla numbering
conventions here:
http://www.mozilla.org/releases/cvstags.html
*/
// this will return alpha and beta version numbers, if present
$moz_rv_full = browser_version($browser_user_agent, 'rv');
// this slices them back off for math comparisons
$moz_rv = substr($moz_rv_full, 0, 3);
// this is to pull out specific mozilla versions, firebird, netscape etc..
for ($i = 0; $i < count($moz_types); $i++) {
if (stristr($browser_user_agent, $moz_types[$i])) {
$moz_version = $moz_types[$i];
$moz_version_number = browser_version($browser_user_agent, $moz_version);
break;
}
}
// this is necesary to protect against false id'ed moz'es and new moz'es.
// this corrects for galeon, or any other moz browser without an rv number
if (!$moz_rv) {
$moz_rv = substr($moz_version_number, 0, 3);
$moz_rv_full = $moz_version_number;
/*
// you can use this instead if you are running php >= 4.2
$moz_rv = floatval( $moz_version_number );
$moz_rv_full = $moz_version_number;
*/
}
// this corrects the version name in case it went to the default 'rv' for the test
if ($moz_version == 'rv') {
$moz_version = 'mozilla';
}
//the moz version will be taken from the rv number, see notes above for rv problems
$version_number = $moz_rv;
// gets the actual release date, necessary if you need to do functionality tests
$moz_release = browser_version($browser_user_agent, 'gecko/');
/*
Test for mozilla 0.9.x / netscape 6.x
test your javascript/CSS to see if it works in these mozilla releases, if it does, just default it to:
$safe_browser = true;
*/
if ($moz_release < 20020400 || $moz_rv < 1) {
$safe_browser = false;
}
break;
case 'ie':
//$version_number = browser_version( $browser_user_agent, $s_browser, $substring_length );
$version_number = browser_version($browser_user_agent, $s_browser);
if ($os == 'mac') {
$ie_version = 'ieMac';
}
// this assigns a general ie id to the $ie_version variable
if ($version_number >= 5) {
$ie_version = 'ie5x';
} elseif ($version_number > 3 && $version_number < 5) {
$dom_browser = false;
$ie_version = 'ie4';
$safe_browser = true;
// this depends on what you're using the script for, make sure this fits your needs
} else {
$ie_version = 'old';
$safe_browser = false;
}
break;
case 'op':
//$version_number = browser_version( $browser_user_agent, $s_browser, $substring_length );
$version_number = browser_version($browser_user_agent, $s_browser);
if ($version_number < 5) {
$safe_browser = false;
}
break;
case 'saf':
//$version_number = browser_version( $browser_user_agent, $s_browser, $substring_length );
$version_number = browser_version($browser_user_agent, $s_browser);
break;
default:
break;
}
$dom_browser = $b_dom;
$b_success = true;
break;
}
}
//assigns defaults if the browser was not found in the loop test
if (!$b_success) {
$safe_browser = false;
$dom_browser = false;
$browser_name = '';
}
// this ends the run through once if clause, set the boolean
//to true so the function won't retest everything
$b_repeat = true;
}
/*
This is where you return values based on what parameter you used to call the function
$which_test is the passed parameter in the initial browser_detection('os') for example call
*/
switch ($which_test) {
case 'safe':
// returns true/false if your tests determine it's a safe browser
// you can change the tests to determine what is a safeBrowser for your scripts
// in this case sub rv 1 Mozillas and Netscape 4x's trigger the unsafe condition
return $safe_browser;
break;
case 'ie_version':
// returns iemac or ie5x
return $ie_version;
break;
case 'moz_version':
// returns array of all relevant moz information
$moz_array = array($moz_version, $moz_version_number, $moz_rv, $moz_rv_full, $moz_release);
return $moz_array;
break;
case 'dom':
// returns true/fale if a DOM capable browser
return $dom_browser;
break;
case 'os':
// returns os name
return $os;
break;
case 'os_number':
// returns os number if windows
return $os_number;
break;
case 'browser':
// returns browser name
return $browser_name;
break;
case 'number':
// returns browser number
return $version_number;
break;
case 'full':
// returns all relevant browser information in an array
$full_array = array($browser_name, $version_number, $ie_version, $dom_browser, $safe_browser, $os, $os_number);
return $full_array;
break;
default:
break;
}
}
