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help with php browser redirect

dombrorj

By dombrorj
in PHP Coding Help

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dombrorj Member

dombrorj

Posted
Posted

Hi,

 

I'm trying to make a simple php script that will redirect users based on their browser type. I'm looking to send IE and Firefox users to one URL, and Safari/Opera/Chrome visitors to another URL. Here is what I have so far that is working, but can't figure out how to add additional redirect options based on the browser type.

 

<?
//this function gets the header sent by browser and returns name of the browser or 'other' if the browser is not in the list
function getBrowser() {
$u_agent = $_SERVER['HTTP_USER_AGENT'];
$ub = 'other';
if(preg_match('/MSIE/i',$u_agent)) {
   $ub = 'ie';
}
elseif(preg_match('/Firefox/i',$u_agent)) {
   $ub = 'firefox';
}
elseif(preg_match('/Mozilla/i',$u_agent)) {
   $ub = 'firefox';
}
elseif(preg_match('/Safari/i',$u_agent)) {
   $ub = 'safari';
}
elseif(preg_match('/Chrome/i',$u_agent)) {
   $ub = 'chrome';
}
elseif(preg_match('/Opera/i',$u_agent)) {
   $ub = 'opera';
}
return $ub;
}

$browser=getBrowser();
if (($browser=='ie'))
header( 'Location: http://www.google.com' ) ;

else
header( 'Location: http://www.yahoo.com' ) ;

?>

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https://forums.phpfreaks.com/topic/185982-help-with-php-browser-redirect/
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Deoctor Member

Deoctor

Posted
Posted

u can use the ||(or) parameter which will redirect to the respective ones.

$browser=getBrowser();
if (($browser=='ie')||($browser=='firefox'))
header( 'Location: http://www.google.com' ) ;

else
header( 'Location: http://www.yahoo.com' ) ;

 

like this u can do it out

Deoctor Member

Deoctor

Posted
Posted

I thought that would work too. But when I test it, all browsers redirect to the first "if" function.

 

For example, I did exactly what you have above and everything is redirecting to google.com. Even Safari, Chrome, etc.

 

u have to modify the code like this 

$browser=getBrowser();
if (($browser=='ie')||($browser=='firefox'))
{
header( 'Location: http://www.google.com' ) ;
}
elseif (($browser=='safari')||($browser=='chrome')
{
header( 'Location: http://www.yahoo.com' ) ;
}

else
{
header('Location: http://www.rediff.com');
}

 

dombrorj Member

dombrorj

Posted
  • Author
Posted

I just tried that as well, and same issue. On your 6th line, there's a closed parenthesis missing that caused it to break(after $browser=='chrome), but when I added that all browsers are still redirecting to Google.

 

Is there anything else in the script that is not allowing it to follow the 'elseif' statement?

 

I appreciate the help!

Lamez Advanced Member

Lamez

Posted
Posted 

<?php
function getBrowser() {
$u_agent = $_SERVER['HTTP_USER_AGENT'];
$ub = 'other';
if(preg_match('/MSIE/i',$u_agent)){
   		$ub = 'ie';
	}
	elseif(preg_match('/Firefox/i',$u_agent)){
   		$ub = 'firefox';
	}
	elseif(preg_match('/Mozilla/i',$u_agent)){
   		$ub = 'firefox';
	}
	elseif(preg_match('/Safari/i',$u_agent)){
   		$ub = 'safari';
	}
	elseif(preg_match('/Chrome/i',$u_agent)){
   		$ub = 'chrome';
	}
	elseif(preg_match('/Opera/i',$u_agent)){
   		$ub = 'opera';
	}
return $ub;
}
$browser = getBrowser();
if($browser == 'ie'){
$url = 'http://www.google.com';
}elseif($browser == 'firefox'){
$url = 'http://www.google.com';
}elseif($browser == 'safari'){
$url = 'http://www.yahoo.com';
}elseif($browser == 'chrome'){
$url = 'http://www.ask.com';
}elseif($browser == 'opera'){
$url = 'http://www.ask.com';
}
header("Location: ".$url);
?>

 

I would about it that way, just in case you want to change the url's later.

Deoctor Member

Deoctor

Posted
Posted

I just tried that as well, and same issue. On your 6th line, there's a closed parenthesis missing that caused it to break(after $browser=='chrome), but when I added that all browsers are still redirecting to Google.

 

Is there anything else in the script that is not allowing it to follow the 'elseif' statement?

 

I appreciate the help!

 

now i got it why

just check the output it will give with the HTTP_USER_AGENT

 

i have tried it using the chrome.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/532.0 (KHTML, like Gecko) Chrome/3.0.195.38 Safari/532.0

 

as mozilla is matching out it is taking the browser chrome also as a firefox

dombrorj Member

dombrorj

Posted
  • Author
Posted

 

I would about it that way, just in case you want to change the url's later.

 

I like that, thank you! That's good thinking.

 

Edit: From ym_chaitu's response, I removed the "Mozilla" part of the string (around line 10) and used Lamez's code above. What I'm left with now is FF and IE redirecting to Google, which is good. But now Safari and Chrome are both redirecting to Yahoo, when Chrome should go to Ask.com.  I haven't checked Opera though.

 

Making progress!

 

<?php
function getBrowser() {
   $u_agent = $_SERVER['HTTP_USER_AGENT'];
   $ub = 'other';
   if(preg_match('/MSIE/i',$u_agent)){
         $ub = 'ie';
    }
    elseif(preg_match('/Firefox/i',$u_agent)){
         $ub = 'firefox';
    }
    elseif(preg_match('/Safari/i',$u_agent)){
         $ub = 'safari';
    }
    elseif(preg_match('/Chrome/i',$u_agent)){
         $ub = 'chrome';
    }
    elseif(preg_match('/Opera/i',$u_agent)){
         $ub = 'opera';
    }
   return $ub;
}
$browser = getBrowser();
if($browser == 'ie'){
   $url = 'http://www.google.com';
}elseif($browser == 'firefox'){
   $url = 'http://www.google.com';
}elseif($browser == 'safari'){
   $url = 'http://www.yahoo.com';
}elseif($browser == 'chrome'){
   $url = 'http://www.ask.com';
}elseif($browser == 'opera'){
   $url = 'http://www.ask.com';
}
header("Location: ".$url);
?>

 

Thanks again for the help with this.

Deoctor Member

Deoctor

Posted
Posted

use this function to detect the browser

<?php
    

    class Browser {
        private $_agent = '';
        private $_browser_name = '';
        private $_version = '';
        private $_platform = '';
        private $_os = '';
        private $_is_aol = false;
        private $_is_mobile = false;
        private $_is_robot = false;
        private $_aol_version = '';

        const BROWSER_UNKNOWN = 'unknown';
        const VERSION_UNKNOWN = 'unknown';
        
        const BROWSER_OPERA = 'Opera';                            // http://www.opera.com/
        const BROWSER_OPERA_MINI = 'Opera Mini';                  // http://www.opera.com/mini/
        const BROWSER_WEBTV = 'WebTV';                            // http://www.webtv.net/pc/
        const BROWSER_IE = 'Internet Explorer';                   // http://www.microsoft.com/ie/
        const BROWSER_POCKET_IE = 'Pocket Internet Explorer';     // http://en.wikipedia.org/wiki/Internet_Explorer_Mobile
        const BROWSER_KONQUEROR = 'Konqueror';                    // http://www.konqueror.org/
        const BROWSER_ICAB = 'iCab';                              // http://www.icab.de/
        const BROWSER_OMNIWEB = 'OmniWeb';                        // http://www.omnigroup.com/applications/omniweb/
        const BROWSER_FIREBIRD = 'Firebird';                      // http://www.ibphoenix.com/
        const BROWSER_FIREFOX = 'Firefox';                        // http://www.mozilla.com/en-US/firefox/firefox.html
        const BROWSER_SHIRETOKO = 'Shiretoko';                    // http://wiki.mozilla.org/Projects/shiretoko
        const BROWSER_MOZILLA = 'Mozilla';                        // http://www.mozilla.com/en-US/
        const BROWSER_AMAYA = 'Amaya';                            // http://www.w3.org/Amaya/
        const BROWSER_LYNX = 'Lynx';                              // http://en.wikipedia.org/wiki/Lynx
        const BROWSER_SAFARI = 'Safari';                          // http://apple.com
        const BROWSER_IPHONE = 'iPhone';                          // http://apple.com
        const BROWSER_IPOD = 'iPod';                              // http://apple.com 
        const BROWSER_CHROME = 'Chrome';                          // http://www.google.com/chrome
        const BROWSER_ANDROID = 'Android';                        // http://www.android.com/
        const BROWSER_GOOGLEBOT = 'GoogleBot';                    // http://en.wikipedia.org/wiki/Googlebot
        const BROWSER_SLURP = 'Yahoo! Slurp';                     // http://en.wikipedia.org/wiki/Yahoo!_Slurp
        const BROWSER_W3CVALIDATOR = 'W3C Validator';             // http://validator.w3.org/
        const BROWSER_BLACKBERRY = 'BlackBerry';                  // http://www.blackberry.com/
        const BROWSER_ICECAT = 'IceCat';                          // http://en.wikipedia.org/wiki/GNU_IceCat
        
        const BROWSER_NETSCAPE_NAVIGATOR = 'Netscape Navigator';  // http://browser.netscape.com/ (DEPRECATED)
        const BROWSER_GALEON = 'Galeon';                          // http://galeon.sourceforge.net/ (DEPRECATED)
        const BROWSER_NETPOSITIVE = 'NetPositive';                // http://en.wikipedia.org/wiki/NetPositive (DEPRECATED)
        const BROWSER_PHOENIX = 'Phoenix';                        // http://en.wikipedia.org/wiki/History_of_Mozilla_Firefox (DEPRECATED)
        
        const PLATFORM_UNKNOWN = 'unknown';
        const PLATFORM_WINDOWS = 'Windows';
        const PLATFORM_WINDOWS_CE = 'Windows CE';
        const PLATFORM_APPLE = 'Apple';
        const PLATFORM_LINUX = 'Linux';
        const PLATFORM_OS2 = 'OS/2';
        const PLATFORM_BEOS = 'BeOS';
        const PLATFORM_IPHONE = 'iPhone';
        const PLATFORM_IPOD = 'iPod';
        const PLATFORM_BLACKBERRY = 'BlackBerry';
        
        const OPERATING_SYSTEM_UNKNOWN = 'unknown';
        
        public function __construct() {
            $this->reset();
            $this->determine();
        }
        /**
         * Reset all properties
         */
        public function reset() {
            $this->_agent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : "";
            $this->_browser_name = self::BROWSER_UNKNOWN;
            $this->_version = self::VERSION_UNKNOWN;
            $this->_platform = self::PLATFORM_UNKNOWN;
            $this->_os = self::OPERATING_SYSTEM_UNKNOWN;
            $this->_is_aol = false;
            $this->_is_mobile = false;
            $this->_is_robot = false;
            $this->_aol_version = self::VERSION_UNKNOWN;
        }
        
        /**
         * Check to see if the specific browser is valid
         * @param string $browserName
         * @return True if the browser is the specified browser
         */
        function isBrowser($browserName) { return( 0 == strcasecmp($this->_browser_name, trim($browserName))); }

        /**
         * The name of the browser.  All return types are from the class contants
         * @return string Name of the browser
         */
        public function getBrowser() { return $this->_browser_name; }
        /**
         * Set the name of the browser
         * @param $browser The name of the Browser
         */
        public function setBrowser($browser) { return $this->_browser_name = $browser; }
        /**
         * The name of the platform.  All return types are from the class contants
         * @return string Name of the browser
         */
        public function getPlatform() { return $this->_platform; }
        /**
         * Set the name of the platform
         * @param $platform The name of the Platform
         */
        public function setPlatform($platform) { return $this->_platform = $platform; }
        /**
         * The version of the browser.
         * @return string Version of the browser (will only contain alpha-numeric characters and a period)
         */
        public function getVersion() { return $this->_version; }
        /**
         * Set the version of the browser
         * @param $version The version of the Browser
         */
        public function setVersion($version) { $this->_version = preg_replace('[^0-9,.,a-z,A-Z]','',$version); }
        /**
         * The version of AOL.
         * @return string Version of AOL (will only contain alpha-numeric characters and a period)
         */
        public function getAolVersion() { return $this->_aol_version; }
        /**
         * Set the version of AOL
         * @param $version The version of AOL
         */
        public function setAolVersion($version) { $this->_aol_version = preg_replace('[^0-9,.,a-z,A-Z]','',$version); }
        /**
         * Is the browser from AOL?
         * @return boolean True if the browser is from AOL otherwise false
         */
        public function isAol() { return $this->_is_aol; }
        /**
         * Is the browser from a mobile device?
         * @return boolean True if the browser is from a mobile device otherwise false
         */
        public function isMobile() { return $this->_is_mobile; }
        /**
         * Is the browser from a robot (ex Slurp,GoogleBot)?
         * @return boolean True if the browser is from a robot otherwise false
         */
        public function isRobot() { return $this->_is_robot; }
        /**
         * Set the browser to be from AOL
         * @param $isAol
         */
        public function setAol($isAol) { $this->_is_aol = $isAol; }
        /**
         * Get the user agent value in use to determine the browser
         * @return string The user agent from the HTTP header
         */
        public function getUserAgent() { return $this->_agent; }
        /**
         * Set the user agent value (the construction will use the HTTP header value - this will overwrite it)
         * @param $agent_string The value for the User Agent
         */
        public function setUserAgent($agent_string) {
            $this->reset();
            $this->_agent = $agent_string;
            $this->determine();
        }
        protected function setMobile($value=true) {
            $this->_is_mobile = $value;
        }
        protected function setRobot($value=true) {
            $this->_is_robot = $value;
        }
        /**
         * Protected routine to calculate and determine what the browser is in use (including platform)
         */
        protected function determine() {
            $this->checkPlatform();
            $this->checkBrowsers();
            $this->checkForAol();
        }

        /**
         * Protected routine to determine the browser type
         * @return boolean True if the browser was detected otherwise false
         */
        protected function checkBrowsers() {
            return (
                        $this->checkBrowserGoogleBot() ||
                        $this->checkBrowserSlurp() ||
                        $this->checkBrowserInternetExplorer() ||
                        $this->checkBrowserShiretoko() ||
                        $this->checkBrowserIceCat() ||
                        $this->checkBrowserNetscapeNavigator9Plus() ||
                        $this->checkBrowserFirefox() ||
                        $this->checkBrowserChrome() ||
                        $this->checkBrowserAndroid() ||
                        $this->checkBrowserSafari() ||
                        $this->checkBrowserOpera() ||
                        $this->checkBrowserNetPositive() ||
                        $this->checkBrowserFirebird() ||
                        $this->checkBrowserGaleon() ||
                        $this->checkBrowserKonqueror() ||
                        $this->checkBrowserIcab() ||
                        $this->checkBrowserOmniWeb() ||
                        $this->checkBrowserPhoenix() ||
                        $this->checkBrowserWebTv() ||
                        $this->checkBrowserAmaya() ||
                        $this->checkBrowserLynx() ||
                        $this->checkBrowseriPhone() ||
                        $this->checkBrowseriPod() ||
                        $this->checkBrowserBlackBerry() ||
                        $this->checkBrowserW3CValidator() ||
                        $this->checkBrowserMozilla() /* Mozilla is such an open standard that you must check it last */    
                        );
        }

        /**
         * Determine if the user is using a BlackBerry
         * @return boolean True if the browser is the BlackBerry browser otherwise false
         */
        protected function checkBrowserBlackBerry() {
            $retval = false;
            if( preg_match('/blackberry/i',$this->_agent) ) {
                $aresult = explode("/",stristr($this->_agent,"BlackBerry"));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion($aversion[0]);
                $this->_browser_name = self::BROWSER_BLACKBERRY;
                $this->setMobile();
                $retval = true;
            }
            return $retval;
        }

        /**
         * Determine if the user is using an AOL User Agent
         * @return boolean True if the browser is from AOL otherwise false
         */
        protected function checkForAol() {
            $retval = false;
            if( preg_match('/aol/i', $this->_agent) ) {
                $aversion = explode(' ',stristr($this->_agent, 'AOL'));
                $this->setAol(true);
                $this->setAolVersion(preg_replace('/[^0-9\.a-z]/i', '', $aversion[1]));
                $retval = true;
            }
            else {
                $this->setAol(false);
                $this->setAolVersion(self::VERSION_UNKNOWN);
                $retval = true;
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is the GoogleBot or not
         * @return boolean True if the browser is the GoogletBot otherwise false
         */
        protected function checkBrowserGoogleBot() {
            $retval = false;
            if( preg_match('/googlebot/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'googlebot'));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion(str_replace(';','',$aversion[0]));
                $this->_browser_name = self::BROWSER_GOOGLEBOT;
                $this->setRobot();
                $retval = true;
            }
            return $retval;
        }
                
        /**
         * Determine if the browser is the W3C Validator or not
         * @return boolean True if the browser is the W3C Validator otherwise false
         */
        protected function checkBrowserW3CValidator() {
            $retval = false;
            if( preg_match('/W3C-checklink/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'W3C-checklink'));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion($aversion[0]);
                $this->_browser_name = self::BROWSER_W3CVALIDATOR;
                $retval = true;
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is the W3C Validator or not
         * @return boolean True if the browser is the W3C Validator otherwise false
         */
        protected function checkBrowserSlurp() {
            $retval = false;
            if( preg_match('/Slurp/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'Slurp'));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion($aversion[0]);
                $this->_browser_name = self::BROWSER_SLURP;
                $this->setRobot();
                $retval = true;
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is Internet Explorer or not
         * @return boolean True if the browser is Internet Explorer otherwise false
         */
        protected function checkBrowserInternetExplorer() {
            $retval = false;

            // Test for v1 - v1.5 IE
            if( preg_match('/microsoft internet explorer/i', $this->_agent) ) {
                $this->setBrowser(self::BROWSER_IE);
                $this->setVersion('1.0');
                $aresult = stristr($this->_agent, '/');
                if( preg_match('/308|425|426|474|0b1/i', $aresult) ) {
                    $this->setVersion('1.5');
                }
                $retval = true;
            }
            // Test for versions > 1.5
            else if( preg_match('/msie/i',$this->_agent) && !preg_match('/opera/i',$this->_agent) ) {
                $aresult = explode(' ',stristr(str_replace(';','; ',$this->_agent),'msie'));
                $this->setBrowser( self::BROWSER_IE );
                $this->setVersion(str_replace(array('(',')',';'),'',$aresult[1]));
                $retval = true;
            }
            // Test for Pocket IE
            else if( preg_match('/mspie/i',$this->_agent) || preg_match('/pocket/i', $this->_agent) ) {
                $aresult = explode(' ',stristr($this->_agent,'mspie'));
                $this->setPlatform( self::PLATFORM_WINDOWS_CE );
                $this->setBrowser( self::BROWSER_POCKET_IE );
                $this->setMobile();
                
                if( preg_match('/mspie/i', $this->_agent) ) {
                    $this->setVersion($aresult[1]);
                }
                else {
                    $aversion = explode('/',$this->_agent);
                    $this->setVersion($aversion[1]);
                }
                $retval = true;
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is Opera or not
         * @return boolean True if the browser is Opera otherwise false
         */
        protected function checkBrowserOpera() {
            $retval = false;
            if( preg_match('/opera mini/i',$this->_agent) ) {
                $resultant = stristr($this->_agent, 'opera mini');
                if( preg_match('/\//',$resultant) ) {
                    $aresult = explode('/',$resultant);
                    $aversion = explode(' ',$aresult[1]); 
                    $this->setVersion($aversion[0]);
                    $this->_browser_name = self::BROWSER_OPERA_MINI;
                    $this->setMobile();
                    $retval = true;
                }
                else {
                    $aversion = explode(' ',stristr($resultant,'opera mini'));
                    $this->setVersion($aversion[1]);
                    $this->_browser_name = self::BROWSER_OPERA_MINI;
                    $this->setMobile();
                    $retval = true;
                }
            }
            else if( preg_match('/opera/i',$this->_agent) ) {
                $resultant = stristr($this->_agent, 'opera');
                if( preg_match('/Version\/(10.*)$/',$resultant,$matches) ) {
                    $this->setVersion($matches[1]);
                    $this->_browser_name = self::BROWSER_OPERA;
                    $retval = true;
                }
                else if( preg_match('/\//',$resultant) ) {
                    $aresult = explode('/',$resultant);
                    $aversion = explode(' ',$aresult[1]); 
                    $this->setVersion($aversion[0]);
                    $this->_browser_name = self::BROWSER_OPERA;
                    $retval = true;
                }
                else {
                    $aversion = explode(' ',stristr($resultant,'opera'));
                    $this->setVersion($aversion[1]);
                    $this->_browser_name = self::BROWSER_OPERA;
                    $retval = true;
                }
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is WebTv or not
         * @return boolean True if the browser is WebTv otherwise false
         */
        protected function checkBrowserWebTv() {
            $retval = false;
            if( preg_match('/webtv/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'webtv'));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion($aversion[0]);
                $this->_browser_name = self::BROWSER_WEBTV;
                $retval = true;
            }
            return $retval;
        }
                
        /**
         * Determine if the browser is NetPositive or not
         * @return boolean True if the browser is NetPositive otherwise false
         */
        protected function checkBrowserNetPositive() {
            $retval = false;
            if( preg_match('/NetPositive/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'NetPositive'));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion(str_replace(array('(',')',';'),'',$aversion[0]));
                $this->_browser_name = self::BROWSER_NETPOSITIVE;
                $this->_platform = self::PLATFORM_BEOS;
                $retval = true;
            }
            return $retval;
        }
            
        /**
         * Determine if the browser is Galeon or not
         * @return boolean True if the browser is Galeon otherwise false
         */
        protected function checkBrowserGaleon() {
            $retval = false;
            if( preg_match('/galeon/i',$this->_agent) ) {
                $aresult = explode(' ',stristr($this->_agent,'galeon'));
                $aversion = explode('/',$aresult[0]);
                $this->setVersion($aversion[1]);
                $this->setBrowser(self::BROWSER_GALEON);
                $retval = true;
            }
            return $retval;
        }
            
        /**
         * Determine if the browser is Konqueror or not
         * @return boolean True if the browser is Konqueror otherwise false
         */
        protected function checkBrowserKonqueror() {
            $retval = false;
            if( preg_match('/Konqueror/i',$this->_agent) ) {
                $aresult = explode(' ',stristr($this->_agent,'Konqueror'));
                $aversion = explode('/',$aresult[0]);
                $this->setVersion($aversion[1]);
                $this->setBrowser(self::BROWSER_KONQUEROR);
                $retval = true;
            }
            return $retval;
        }
            
        /**
         * Determine if the browser is iCab or not
         * @return boolean True if the browser is iCab otherwise false
         */
        protected function checkBrowserIcab() {
            $retval = false;
            if( preg_match('/icab/i',$this->_agent) ) {
                $aversion = explode(' ',stristr(str_replace('/',' ',$this->_agent),'icab'));
                $this->setVersion($aversion[1]);
                $this->setBrowser(self::BROWSER_ICAB);
                $retval = true;
            }
            return $retval;
        }
            
        /**
         * Determine if the browser is OmniWeb or not
         * @return boolean True if the browser is OmniWeb otherwise false
         */
        protected function checkBrowserOmniWeb() {
            $retval = false;
            if( preg_match('/omniweb/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'omniweb'));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_OMNIWEB);
                $retval = true;
            }
            return $retval;
        }
            
        /**
         * Determine if the browser is Phoenix or not
         * @return boolean True if the browser is Phoenix otherwise false
         */
        protected function checkBrowserPhoenix() {
            $retval = false;
            if( preg_match('/Phoenix/i',$this->_agent) ) {
                $aversion = explode('/',stristr($this->_agent,'Phoenix'));
                $this->setVersion($aversion[1]);
                $this->setBrowser(self::BROWSER_PHOENIX);
                $retval = true;
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is Firebird or not
         * @return boolean True if the browser is Firebird otherwise false
         */
        protected function checkBrowserFirebird() {
            $retval = false;
            if( preg_match('/Firebird/i',$this->_agent) ) {
                $aversion = explode('/',stristr($this->_agent,'Firebird'));
                $this->setVersion($aversion[1]);
                $this->setBrowser(self::BROWSER_FIREBIRD);
                $retval = true;
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is Netscape Navigator 9+ or not (http://browser.netscape.com/ - Official support ended on March 1st, 2008)
         * @return boolean True if the browser is Netscape Navigator 9+ otherwise false
         */
        protected function checkBrowserNetscapeNavigator9Plus() {
            $retval = false;
            if( preg_match('/Firefox/i',$this->_agent) && preg_match('/Navigator\/([^ ]*)/i',$this->_agent,$matches) ) {
                $this->setVersion($matches[1]);
                $this->setBrowser(self::BROWSER_NETSCAPE_NAVIGATOR);
                $retval = true;
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is Shiretoko or not (https://wiki.mozilla.org/Projects/shiretoko)
         * @return boolean True if the browser is Shiretoko otherwise false
         */
        protected function checkBrowserShiretoko() {
            $retval = false;
            if( preg_match('/Mozilla/i',$this->_agent) && preg_match('/Shiretoko\/([^ ]*)/i',$this->_agent,$matches) ) {
                $this->setVersion($matches[1]);
                $this->setBrowser(self::BROWSER_SHIRETOKO);
                $retval = true;
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is Ice Cat or not (http://en.wikipedia.org/wiki/GNU_IceCat)
         * @return boolean True if the browser is Ice Cat otherwise false
         */
        protected function checkBrowserIceCat() {
            $retval = false;
            if( preg_match('/Mozilla/i',$this->_agent) && preg_match('/IceCat\/([^ ]*)/i',$this->_agent,$matches) ) {
                $this->setVersion($matches[1]);
                $this->setBrowser(self::BROWSER_ICECAT);
                $retval = true;
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is Firefox or not
         * @return boolean True if the browser is Firefox otherwise false
         */
        protected function checkBrowserFirefox() {
            $retval = false;
            if( preg_match('/Firefox/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'Firefox'));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_FIREFOX);
                $retval = true;
            }
            return $retval;
        }
        
        /**
         * Determine if the browser is Mozilla or not
         * @return boolean True if the browser is Mozilla otherwise false
         */
        protected function checkBrowserMozilla() {
            $retval = false;
            if( preg_match('/mozilla/i',$this->_agent) && preg_match('/rv:[0-9].[0-9][a-b]?/i',$this->_agent) && !preg_match('/netscape/i',$this->_agent)) {
                $aversion = explode(' ',stristr($this->_agent,'rv:'));
                preg_match('/rv:[0-9].[0-9][a-b]?/i',$this->_agent,$aversion);
                $this->setVersion(str_replace('rv:','',$aversion[0]));
                $this->setBrowser(self::BROWSER_MOZILLA);
                $retval = true;
            }
            else if( preg_match('/mozilla/i',$this->_agent) && preg_match('/rv:[0-9]\.[0-9]/i',$this->_agent) && !preg_match('/netscape/i',$this->_agent) ) {
                $aversion = explode('',stristr($this->_agent,'rv:'));
                preg_match('/rv:[0-9]\.[0-9]\.[0-9]/i',$this->_agent,$aversion);
                echo 
                $this->setVersion(str_replace('rv:','',$aversion[0]));
                $this->setBrowser(self::BROWSER_MOZILLA);
                $retval = true;
            }
            return $retval;
        }

        /**
         * Determine if the browser is Lynx or not
         * @return boolean True if the browser is Lynx otherwise false
         */
        protected function checkBrowserLynx() {
            $retval = false;
            if( preg_match('/libwww/i',$this->_agent) && preg_match('/lynx/i', $this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'Lynx'));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_LYNX);
                $retval = true;
            }
            return $retval;
        }
            
        /**
         * Determine if the browser is Amaya or not
         * @return boolean True if the browser is Amaya otherwise false
         */
        protected function checkBrowserAmaya() {
            $retval = false;
            if( preg_match('/libwww/i',$this->_agent) && preg_match('/amaya/i', $this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'Amaya'));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_AMAYA);
                $retval = true;
            }
            return $retval;
        }
            
        /**
         * Determine if the browser is Chrome or not
         * @return boolean True if the browser is Chrome otherwise false
         */
        protected function checkBrowserChrome() {
            $retval = false;
            if( preg_match('/Chrome/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'Chrome'));
                $aversion = explode(' ',$aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_CHROME);
                $retval = true;
            }
            return $retval;
        }        
        
        /**
         * Determine if the browser is Safari or not
         * @return boolean True if the browser is Safari otherwise false
         */
        protected function checkBrowserSafari() {
            $retval = false;
            if( preg_match('/Safari/i',$this->_agent) && ! preg_match('/iPhone/i',$this->_agent) && ! preg_match('/iPod/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'Version'));
                if( isset($aresult[1]) ) {
                    $aversion = explode(' ',$aresult[1]);
                    $this->setVersion($aversion[0]);
                }
                else {
                    $this->setVersion(self::VERSION_UNKNOWN);
                }
                $this->setBrowser(self::BROWSER_SAFARI);
                $retval = true;
            }
            return $retval;
        }        
        
        /**
         * Determine if the browser is iPhone or not
         * @return boolean True if the browser is iPhone otherwise false
         */
        protected function checkBrowseriPhone() {
            $retval = false;
            if( preg_match('/iPhone/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'Version'));
                if( isset($aresult[1]) ) {
                    $aversion = explode(' ',$aresult[1]);
                    $this->setVersion($aversion[0]);
                }
                else {
                    $this->setVersion(self::VERSION_UNKNOWN);
                }
                $this->setMobile();
                $this->setBrowser(self::BROWSER_IPHONE);
                $retval = true;
            }
            return $retval;
        }        

        /**
         * Determine if the browser is iPod or not
         * @return boolean True if the browser is iPod otherwise false
         */
        protected function checkBrowseriPod() {
            $retval = false;
            if( preg_match('/iPod/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'Version'));
                if( isset($aresult[1]) ) {
                    $aversion = explode(' ',$aresult[1]);
                    $this->setVersion($aversion[0]);
                }
                else {
                    $this->setVersion(self::VERSION_UNKNOWN);
                }
                $this->setMobile();
                $this->setBrowser(self::BROWSER_IPOD);
                $retval = true;
            }
            return $retval;
        }        

        /**
         * Determine if the browser is Android or not
         * @return boolean True if the browser is Android otherwise false
         */
        protected function checkBrowserAndroid() {
            $retval = false;
            if( preg_match('/Android/i',$this->_agent) ) {
                $aresult = explode('/',stristr($this->_agent,'Version'));
                if( isset($aresult[1]) ) {
                    $aversion = explode(' ',$aresult[1]);
                    $this->setVersion($aversion[0]);
                }
                else {
                    $this->setVersion(self::VERSION_UNKNOWN);
                }
                $this->setMobile();
                $this->setBrowser(self::BROWSER_ANDROID);
                $retval = true;
            }
            return $retval;
        }        

        /**
         * Determine the user's platform
         */
        protected function checkPlatform() {
            if( preg_match('/iPhone/i', $this->_agent) ) {
                $this->_platform = self::PLATFORM_IPHONE;
            }
            else if( preg_match('/iPod/i', $this->_agent) ) {
                $this->_platform = self::PLATFORM_IPOD;
            }
            else if( preg_match('/BlackBerry/i', $this->_agent) ) {
                $this->_platform = self::PLATFORM_BLACKBERRY;
            }
            else if( preg_match('/win/i', $this->_agent) ) {
                $this->_platform = self::PLATFORM_WINDOWS;
            }
            elseif( preg_match('/mac/i', $this->_agent) ) {
                $this->_platform = self::PLATFORM_APPLE;
            }
            elseif( preg_match('/linux/i', $this->_agent) ) {
                $this->_platform = self::PLATFORM_LINUX;
            }
            elseif( preg_match('/OS\/2/i', $this->_agent) ) {
                $this->_platform = self::PLATFORM_OS2;
            }
            elseif( preg_match('/BeOS/i', $this->_agent) ) {
                $this->_platform = self::PLATFORM_BEOS;
            }
        }
    }
?>
<?php
$browser = new Browser();
echo "<br>".$browser->getBrowser();
?>

 

this is one of the awesome codes i have ever seen..

Thanks to the developer

http://chrisschuld.com/projects/browser-php-detecting-a-users-browser-from-php/

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