$this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXIMAGERESIZER_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the YandexCatalog or not
     * @return boolean True if the browser is the YandexCatalog otherwise false
     */
    protected function checkBrowserYandexCatalogBot()
    {
        if (stripos($this->_agent, 'YandexCatalog') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YandexCatalog'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXCATALOG_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the YandexNews or not
     * @return boolean True if the browser is the YandexNews otherwise false
     */
    protected function checkBrowserYandexNewsBot()
    {
        if (stripos($this->_agent, 'YandexNews') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YandexNews'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXNEWS_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the YandexMetrika or not
     * @return boolean True if the browser is the YandexMetrika otherwise false
     */
    protected function checkBrowserYandexMetrikaBot()
    {
        if (stripos($this->_agent, 'YandexMetrika') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YandexMetrika'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXMETRIKA_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the YandexDirect or not
     * @return boolean True if the browser is the YandexDirect otherwise false
     */
    protected function checkBrowserYandexDirectBot()
    {
        if (stripos($this->_agent, 'YandexDirect') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YandexDirect'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXDIRECT_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the YandexWebmaster or not
     * @return boolean True if the browser is the YandexWebmaster otherwise false
     */
    protected function checkBrowserYandexWebmasterBot()
    {
        if (stripos($this->_agent, 'YandexWebmaster') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YandexWebmaster'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXWEBMASTER_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the YandexFavicons or not
     * @return boolean True if the browser is the YandexFavicons otherwise false
     */
    protected function checkBrowserYandexFaviconsBot()
    {
        if (stripos($this->_agent, 'YandexFavicons') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YandexFavicons'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXFAVICONS_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the YandexBlogs or not
     * @return boolean True if the browser is the YandexBlogs otherwise false
     */
    protected function checkBrowserYandexBlogsBot()
    {
        if (stripos($this->_agent, 'YandexBlogs') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YandexBlogs'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXBLOGS_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the YandexMedia or not
     * @return boolean True if the browser is the YandexMedia otherwise false
     */
    protected function checkBrowserYandexMediaBot()
    {
        if (stripos($this->_agent, 'YandexMedia') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YandexMedia'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXMEDIA_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the YandexVideo or not
     * @return boolean True if the browser is the YandexVideo otherwise false
     */
    protected function checkBrowserYandexVideoBot()
    {
        if (stripos($this->_agent, 'YandexVideo') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YandexVideo'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXVIDEO_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the YandexImages or not
     * @return boolean True if the browser is the YandexImages otherwise false
     */
    protected function checkBrowserYandexImagesBot()
    {
        if (stripos($this->_agent, 'YandexImages') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YandexImages'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(';', '', $aversion[0]));
                $this->_browser_name = self::BROWSER_YANDEXIMAGES_BOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the MSNBot or not (last updated 1.9)
     * @return boolean True if the browser is the MSNBot otherwise false
     */
    protected function checkBrowserMSNBot()
    {
        if (stripos($this->_agent, "msnbot") !== false) {
            $aresult = explode("/", stristr($this->_agent, "msnbot"));
            if (isset($aresult[1])) {
                $aversion = explode(" ", $aresult[1]);
                $this->setVersion(str_replace(";", "", $aversion[0]));
                $this->_browser_name = self::BROWSER_MSNBOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the BingBot or not (last updated 1.9)
     * @return boolean True if the browser is the BingBot otherwise false
     */
    protected function checkBrowserBingBot()
    {
        if (stripos($this->_agent, "bingbot") !== false) {
            $aresult = explode("/", stristr($this->_agent, "bingbot"));
            if (isset($aresult[1])) {
                $aversion = explode(" ", $aresult[1]);
                $this->setVersion(str_replace(";", "", $aversion[0]));
                $this->_browser_name = self::BROWSER_BINGBOT;
                $this->setRobot(true);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is the W3C Validator or not (last updated 1.7)
     * @return boolean True if the browser is the W3C Validator otherwise false
     */
    protected function checkBrowserW3CValidator()
    {
        if (stripos($this->_agent, 'W3C-checklink') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'W3C-checklink'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
                $this->_browser_name = self::BROWSER_W3CVALIDATOR;
                return true;
            }
        } else if (stripos($this->_agent, 'W3C_Validator') !== false) {
            // Some of the Validator versions do not delineate w/ a slash - add it back in
            $ua = str_replace("W3C_Validator ", "W3C_Validator/", $this->_agent);
            $aresult = explode('/', stristr($ua, 'W3C_Validator'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
                $this->_browser_name = self::BROWSER_W3CVALIDATOR;
                return true;
            }
        } else if (stripos($this->_agent, 'W3C-mobileOK') !== false) {
            $this->_browser_name = self::BROWSER_W3CVALIDATOR;
            $this->setMobile(true);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is the Yahoo! Slurp Robot or not (last updated 1.7)
     * @return boolean True if the browser is the Yahoo! Slurp Robot otherwise false
     */
    protected function checkBrowserSlurp()
    {
        if (stripos($this->_agent, 'slurp') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'Slurp'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
                $this->_browser_name = self::BROWSER_SLURP;
                $this->setRobot(true);
                $this->setMobile(false);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Edge or not
     * @return boolean True if the browser is Edge otherwise false
     */
    protected function checkBrowserEdge()
    {
        if (stripos($this->_agent, 'Edge/') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'Edge'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_EDGE);
                if (stripos($this->_agent, 'Windows Phone') !== false || stripos($this->_agent, 'Android') !== false) {
                    $this->setMobile(true);
                }
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Internet Explorer or not (last updated 1.7)
     * @return boolean True if the browser is Internet Explorer otherwise false
     */
    protected function checkBrowserInternetExplorer()
    {
        //  Test for IE11
        if (stripos($this->_agent, 'Trident/7.0; rv:11.0') !== false) {
            $this->setBrowser(self::BROWSER_IE);
            $this->setVersion('11.0');
            return true;
        } // Test for v1 - v1.5 IE
        else if (stripos($this->_agent, 'microsoft internet explorer') !== false) {
            $this->setBrowser(self::BROWSER_IE);
            $this->setVersion('1.0');
            $aresult = stristr($this->_agent, '/');
            if (preg_match('/308|425|426|474|0b1/i', $aresult)) {
                $this->setVersion('1.5');
            }
            return true;
        } // Test for versions > 1.5
        else if (stripos($this->_agent, 'msie') !== false && stripos($this->_agent, 'opera') === false) {
            // See if the browser is the odd MSN Explorer
            if (stripos($this->_agent, 'msnb') !== false) {
                $aresult = explode(' ', stristr(str_replace(';', '; ', $this->_agent), 'MSN'));
                if (isset($aresult[1])) {
                    $this->setBrowser(self::BROWSER_MSN);
                    $this->setVersion(str_replace(array('(', ')', ';'), '', $aresult[1]));
                    return true;
                }
            }
            $aresult = explode(' ', stristr(str_replace(';', '; ', $this->_agent), 'msie'));
            if (isset($aresult[1])) {
                $this->setBrowser(self::BROWSER_IE);
                $this->setVersion(str_replace(array('(', ')', ';'), '', $aresult[1]));
                if(preg_match('#trident/([0-9\.]+);#i', $this->_agent, $aresult)){
                    if($aresult[1] == '3.1'){
                        $this->setVersion('7.0');
                    }
                    else if($aresult[1] == '4.0'){
                        $this->setVersion('8.0');
                    }
                    else if($aresult[1] == '5.0'){
                        $this->setVersion('9.0');
                    }
                    else if($aresult[1] == '6.0'){
                        $this->setVersion('10.0');
                    }
                    else if($aresult[1] == '7.0'){
                        $this->setVersion('11.0');
                    }
                    else if($aresult[1] == '8.0'){
                        $this->setVersion('11.0');
                    }
                }
                if(stripos($this->_agent, 'IEMobile') !== false) {
                    $this->setBrowser(self::BROWSER_POCKET_IE);
                    $this->setMobile(true);
                }
                return true;
            }
        } // Test for versions > IE 10
        else if (stripos($this->_agent, 'trident') !== false) {
            $this->setBrowser(self::BROWSER_IE);
            $result = explode('rv:', $this->_agent);
            if (isset($result[1])) {
                $this->setVersion(preg_replace('/[^0-9.]+/', '', $result[1]));
                $this->_agent = str_replace(array("Mozilla", "Gecko"), "MSIE", $this->_agent);
            }
        } // Test for Pocket IE
        else if (stripos($this->_agent, 'mspie') !== false || stripos($this->_agent, 'pocket') !== false) {
            $aresult = explode(' ', stristr($this->_agent, 'mspie'));
            if (isset($aresult[1])) {
                $this->setPlatform(self::PLATFORM_WINDOWS_CE);
                $this->setBrowser(self::BROWSER_POCKET_IE);
                $this->setMobile(true);

                if (stripos($this->_agent, 'mspie') !== false) {
                    $this->setVersion($aresult[1]);
                } else {
                    $aversion = explode('/', $this->_agent);
                    if (isset($aversion[1])) {
                        $this->setVersion($aversion[1]);
                    }
                }
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Opera or not (last updated 1.7)
     * @return boolean True if the browser is Opera otherwise false
     */
    protected function checkBrowserOpera()
    {
        if (stripos($this->_agent, 'opera mini') !== false) {
            $resultant = stristr($this->_agent, 'opera mini');
            if (preg_match('/\//', $resultant)) {
                $aresult = explode('/', $resultant);
                if (isset($aresult[1])) {
                    $aversion = explode(' ', $aresult[1]);
                    $this->setVersion($aversion[0]);
                }
            } else {
                $aversion = explode(' ', stristr($resultant, 'opera mini'));
                if (isset($aversion[1])) {
                    $this->setVersion($aversion[1]);
                }
            }
            $this->_browser_name = self::BROWSER_OPERA_MINI;
            $this->setMobile(true);
            return true;
        } else if (stripos($this->_agent, 'opera') !== false) {
            $resultant = stristr($this->_agent, 'opera');
            if (preg_match('/Version\/(1*.*)$/', $resultant, $matches)) {
                $this->setVersion($matches[1]);
            } else if (preg_match('/\//', $resultant)) {
                $aresult = explode('/', str_replace("(", " ", $resultant));
                if (isset($aresult[1])) {
                    $aversion = explode(' ', $aresult[1]);
                    $this->setVersion($aversion[0]);
                }
            } else {
                $aversion = explode(' ', stristr($resultant, 'opera'));
                $this->setVersion(isset($aversion[1]) ? $aversion[1] : "");
            }
            if (stripos($this->_agent, 'Opera Mobi') !== false) {
                $this->setMobile(true);
            }
            $this->_browser_name = self::BROWSER_OPERA;
            return true;
        } else if (stripos($this->_agent, 'OPR') !== false) {
            $resultant = stristr($this->_agent, 'OPR');
            if (preg_match('/\//', $resultant)) {
                $aresult = explode('/', str_replace("(", " ", $resultant));
                if (isset($aresult[1])) {
                    $aversion = explode(' ', $aresult[1]);
                    $this->setVersion($aversion[0]);
                }
            }
            if (stripos($this->_agent, 'Mobile') !== false) {
                $this->setMobile(true);
            }
            $this->_browser_name = self::BROWSER_OPERA;
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is Chrome or not (last updated 1.7)
     * @return boolean True if the browser is Chrome otherwise false
     */
    protected function checkBrowserChrome()
    {
        if (stripos($this->_agent, 'Chrome') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'Chrome'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_CHROME);
                //Chrome on Android
                if (stripos($this->_agent, 'Android') !== false) {
                    if (stripos($this->_agent, 'Mobile') !== false) {
                        $this->setMobile(true);
                    } else {
                        $this->setTablet(true);
                    }
                }
                return true;
            }
        }
        return false;
    }


    /**
     * Determine if the browser is WebTv or not (last updated 1.7)
     * @return boolean True if the browser is WebTv otherwise false
     */
    protected function checkBrowserWebTv()
    {
        if (stripos($this->_agent, 'webtv') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'webtv'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_WEBTV);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is NetPositive or not (last updated 1.7)
     * @return boolean True if the browser is NetPositive otherwise false
     */
    protected function checkBrowserNetPositive()
    {
        if (stripos($this->_agent, 'NetPositive') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'NetPositive'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion(str_replace(array('(', ')', ';'), '', $aversion[0]));
                $this->setBrowser(self::BROWSER_NETPOSITIVE);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Galeon or not (last updated 1.7)
     * @return boolean True if the browser is Galeon otherwise false
     */
    protected function checkBrowserGaleon()
    {
        if (stripos($this->_agent, 'galeon') !== false) {
            $aresult = explode(' ', stristr($this->_agent, 'galeon'));
            $aversion = explode('/', $aresult[0]);
            if (isset($aversion[1])) {
                $this->setVersion($aversion[1]);
                $this->setBrowser(self::BROWSER_GALEON);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Konqueror or not (last updated 1.7)
     * @return boolean True if the browser is Konqueror otherwise false
     */
    protected function checkBrowserKonqueror()
    {
        if (stripos($this->_agent, 'Konqueror') !== false) {
            $aresult = explode(' ', stristr($this->_agent, 'Konqueror'));
            $aversion = explode('/', $aresult[0]);
            if (isset($aversion[1])) {
                $this->setVersion($aversion[1]);
                $this->setBrowser(self::BROWSER_KONQUEROR);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is iCab or not (last updated 1.7)
     * @return boolean True if the browser is iCab otherwise false
     */
    protected function checkBrowserIcab()
    {
        if (stripos($this->_agent, 'icab') !== false) {
            $aversion = explode(' ', stristr(str_replace('/', ' ', $this->_agent), 'icab'));
            if (isset($aversion[1])) {
                $this->setVersion($aversion[1]);
                $this->setBrowser(self::BROWSER_ICAB);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is OmniWeb or not (last updated 1.7)
     * @return boolean True if the browser is OmniWeb otherwise false
     */
    protected function checkBrowserOmniWeb()
    {
        if (stripos($this->_agent, 'omniweb') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'omniweb'));
            $aversion = explode(' ', isset($aresult[1]) ? $aresult[1] : "");
            $this->setVersion($aversion[0]);
            $this->setBrowser(self::BROWSER_OMNIWEB);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is Phoenix or not (last updated 1.7)
     * @return boolean True if the browser is Phoenix otherwise false
     */
    protected function checkBrowserPhoenix()
    {
        if (stripos($this->_agent, 'Phoenix') !== false) {
            $aversion = explode('/', stristr($this->_agent, 'Phoenix'));
            if (isset($aversion[1])) {
                $this->setVersion($aversion[1]);
                $this->setBrowser(self::BROWSER_PHOENIX);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Firebird or not (last updated 1.7)
     * @return boolean True if the browser is Firebird otherwise false
     */
    protected function checkBrowserFirebird()
    {
        if (stripos($this->_agent, 'Firebird') !== false) {
            $aversion = explode('/', stristr($this->_agent, 'Firebird'));
            if (isset($aversion[1])) {
                $this->setVersion($aversion[1]);
                $this->setBrowser(self::BROWSER_FIREBIRD);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Netscape Navigator 9+ or not (last updated 1.7)
     * NOTE: (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()
    {
        if (stripos($this->_agent, 'Firefox') !== false && preg_match('/Navigator\/([^ ]*)/i', $this->_agent, $matches)) {
            $this->setVersion($matches[1]);
            $this->setBrowser(self::BROWSER_NETSCAPE_NAVIGATOR);
            return true;
        } else if (stripos($this->_agent, 'Firefox') === false && preg_match('/Netscape6?\/([^ ]*)/i', $this->_agent, $matches)) {
            $this->setVersion($matches[1]);
            $this->setBrowser(self::BROWSER_NETSCAPE_NAVIGATOR);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is Shiretoko or not (https://wiki.mozilla.org/Projects/shiretoko) (last updated 1.7)
     * @return boolean True if the browser is Shiretoko otherwise false
     */
    protected function checkBrowserShiretoko()
    {
        if (stripos($this->_agent, 'Mozilla') !== false && preg_match('/Shiretoko\/([^ ]*)/i', $this->_agent, $matches)) {
            $this->setVersion($matches[1]);
            $this->setBrowser(self::BROWSER_SHIRETOKO);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is Ice Cat or not (http://en.wikipedia.org/wiki/GNU_IceCat) (last updated 1.7)
     * @return boolean True if the browser is Ice Cat otherwise false
     */
    protected function checkBrowserIceCat()
    {
        if (stripos($this->_agent, 'Mozilla') !== false && preg_match('/IceCat\/([^ ]*)/i', $this->_agent, $matches)) {
            $this->setVersion($matches[1]);
            $this->setBrowser(self::BROWSER_ICECAT);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is Nokia or not (last updated 1.7)
     * @return boolean True if the browser is Nokia otherwise false
     */
    protected function checkBrowserNokia()
    {
        if (preg_match("/Nokia([^\/]+)\/([^ SP]+)/i", $this->_agent, $matches)) {
            $this->setVersion($matches[2]);
            if (stripos($this->_agent, 'Series60') !== false || strpos($this->_agent, 'S60') !== false) {
                $this->setBrowser(self::BROWSER_NOKIA_S60);
            } else {
                $this->setBrowser(self::BROWSER_NOKIA);
            }
            $this->setMobile(true);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is Firefox or not (last updated 1.7)
     * @return boolean True if the browser is Firefox otherwise false
     */
    protected function checkBrowserFirefox()
    {
        if (stripos($this->_agent, 'safari') === false) {
            if (preg_match("/Firefox[\/ \(]([^ ;\)]+)/i", $this->_agent, $matches)) {
                $this->setVersion($matches[1]);
                $this->setBrowser(self::BROWSER_FIREFOX);
                //Firefox on Android
                if (stripos($this->_agent, 'Android') !== false) {
                    if (stripos($this->_agent, 'Mobile') !== false) {
                        $this->setMobile(true);
                    } else {
                        $this->setTablet(true);
                    }
                }
                return true;
            } else if (preg_match("/Firefox$/i", $this->_agent, $matches)) {
                $this->setVersion("");
                $this->setBrowser(self::BROWSER_FIREFOX);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Firefox or not (last updated 1.7)
     * @return boolean True if the browser is Firefox otherwise false
     */
    protected function checkBrowserIceweasel()
    {
        if (stripos($this->_agent, 'Iceweasel') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'Iceweasel'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_ICEWEASEL);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Mozilla or not (last updated 1.7)
     * @return boolean True if the browser is Mozilla otherwise false
     */
    protected function checkBrowserMozilla()
    {
        if (stripos($this->_agent, 'mozilla') !== false && preg_match('/rv:[0-9].[0-9][a-b]?/i', $this->_agent) && stripos($this->_agent, 'netscape') === false) {
            $aversion = explode(' ', stristr($this->_agent, 'rv:'));
            preg_match('/rv:[0-9].[0-9][a-b]?/i', $this->_agent, $aversion);
            $this->setVersion(str_replace('rv:', '', $aversion[0]));
            $this->setBrowser(self::BROWSER_MOZILLA);
            return true;
        } else if (stripos($this->_agent, 'mozilla') !== false && preg_match('/rv:[0-9]\.[0-9]/i', $this->_agent) && stripos($this->_agent, 'netscape') === false) {
            $aversion = explode('', stristr($this->_agent, 'rv:'));
            $this->setVersion(str_replace('rv:', '', $aversion[0]));
            $this->setBrowser(self::BROWSER_MOZILLA);
            return true;
        } else if (stripos($this->_agent, 'mozilla') !== false && preg_match('/mozilla\/([^ ]*)/i', $this->_agent, $matches) && stripos($this->_agent, 'netscape') === false) {
            $this->setVersion($matches[1]);
            $this->setBrowser(self::BROWSER_MOZILLA);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is Lynx or not (last updated 1.7)
     * @return boolean True if the browser is Lynx otherwise false
     */
    protected function checkBrowserLynx()
    {
        if (stripos($this->_agent, 'lynx') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'Lynx'));
            $aversion = explode(' ', (isset($aresult[1]) ? $aresult[1] : ""));
            $this->setVersion($aversion[0]);
            $this->setBrowser(self::BROWSER_LYNX);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is Amaya or not (last updated 1.7)
     * @return boolean True if the browser is Amaya otherwise false
     */
    protected function checkBrowserAmaya()
    {
        if (stripos($this->_agent, 'amaya') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'Amaya'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_AMAYA);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Safari or not (last updated 1.7)
     * @return boolean True if the browser is Safari otherwise false
     */
    protected function checkBrowserSafari()
    {
        if (stripos($this->_agent, 'Safari') !== false
            && stripos($this->_agent, 'iPhone') === false
            && stripos($this->_agent, 'iPod') === false
        ) {

            $aresult = explode('/', stristr($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);
            return true;
        }
        return false;
    }

    protected function checkBrowserSamsung()
    {
        if (stripos($this->_agent, 'SamsungBrowser') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'SamsungBrowser'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
            } else {
                $this->setVersion(self::VERSION_UNKNOWN);
            }
            $this->setBrowser(self::BROWSER_SAMSUNG);
            return true;
        }
        return false;
    }

    protected function checkBrowserSilk()
    {
        if (stripos($this->_agent, 'Silk') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'Silk'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
            } else {
                $this->setVersion(self::VERSION_UNKNOWN);
            }
            $this->setBrowser(self::BROWSER_SILK);
            return true;
        }
        return false;
    }

    protected function checkBrowserIframely()
    {
        if (stripos($this->_agent, 'Iframely') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'Iframely'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
            } else {
                $this->setVersion(self::VERSION_UNKNOWN);
            }
            $this->setBrowser(self::BROWSER_I_FRAME);
            return true;
        }
        return false;
    }

    protected function checkBrowserCocoa()
    {
        if (stripos($this->_agent, 'CocoaRestClient') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'CocoaRestClient'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
            } else {
                $this->setVersion(self::VERSION_UNKNOWN);
            }
            $this->setBrowser(self::BROWSER_COCOA);
            return true;
        }
        return false;
    }

    /**
     * Detect if URL is loaded from FacebookExternalHit
     * @return boolean True if it detects FacebookExternalHit otherwise false
     */
    protected function checkFacebookExternalHit()
    {
        if (stristr($this->_agent, 'FacebookExternalHit')) {
            $this->setRobot(true);
            $this->setFacebook(true);
            return true;
        }
        return false;
    }

    /**
     * Detect if URL is being loaded from internal Facebook browser
     * @return boolean True if it detects internal Facebook browser otherwise false
     */
    protected function checkForFacebookIos()
    {
        if (stristr($this->_agent, 'FBIOS')) {
            $this->setFacebook(true);
            return true;
        }
        return false;
    }

    /**
     * Detect Version for the Safari browser on iOS devices
     * @return boolean True if it detects the version correctly otherwise false
     */
    protected function getSafariVersionOnIos()
    {
        $aresult = explode('/', stristr($this->_agent, 'Version'));
        if (isset($aresult[1])) {
            $aversion = explode(' ', $aresult[1]);
            $this->setVersion($aversion[0]);
            return true;
        }
        return false;
    }

    /**
     * Detect Version for the Chrome browser on iOS devices
     * @return boolean True if it detects the version correctly otherwise false
     */
    protected function getChromeVersionOnIos()
    {
        $aresult = explode('/', stristr($this->_agent, 'CriOS'));
        if (isset($aresult[1])) {
            $aversion = explode(' ', $aresult[1]);
            $this->setVersion($aversion[0]);
            $this->setBrowser(self::BROWSER_CHROME);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is iPhone or not (last updated 1.7)
     * @return boolean True if the browser is iPhone otherwise false
     */
    protected function checkBrowseriPhone()
    {
        if (stripos($this->_agent, 'iPhone') !== false) {
            $this->setVersion(self::VERSION_UNKNOWN);
            $this->setBrowser(self::BROWSER_IPHONE);
            $this->getSafariVersionOnIos();
            $this->getChromeVersionOnIos();
            $this->checkForFacebookIos();
            $this->setMobile(true);
            return true;

        }
        return false;
    }

    /**
     * Determine if the browser is iPad or not (last updated 1.7)
     * @return boolean True if the browser is iPad otherwise false
     */
    protected function checkBrowseriPad()
    {
        if (stripos($this->_agent, 'iPad') !== false) {
            $this->setVersion(self::VERSION_UNKNOWN);
            $this->setBrowser(self::BROWSER_IPAD);
            $this->getSafariVersionOnIos();
            $this->getChromeVersionOnIos();
            $this->checkForFacebookIos();
            $this->setTablet(true);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is iPod or not (last updated 1.7)
     * @return boolean True if the browser is iPod otherwise false
     */
    protected function checkBrowseriPod()
    {
        if (stripos($this->_agent, 'iPod') !== false) {
            $this->setVersion(self::VERSION_UNKNOWN);
            $this->setBrowser(self::BROWSER_IPOD);
            $this->getSafariVersionOnIos();
            $this->getChromeVersionOnIos();
            $this->checkForFacebookIos();
            $this->setMobile(true);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is Android or not (last updated 1.7)
     * @return boolean True if the browser is Android otherwise false
     */
    protected function checkBrowserAndroid()
    {
        if (stripos($this->_agent, 'Android') !== false) {
            $aresult = explode(' ', stristr($this->_agent, 'Android'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
            } else {
                $this->setVersion(self::VERSION_UNKNOWN);
            }
            if (stripos($this->_agent, 'Mobile') !== false) {
                $this->setMobile(true);
            } else {
                $this->setTablet(true);
            }
            $this->setBrowser(self::BROWSER_ANDROID);
            return true;
        }
        return false;
    }

    /**
     * Determine if the browser is Vivaldi
     * @return boolean True if the browser is Vivaldi otherwise false
     */
    protected function checkBrowserVivaldi()
    {
        if (stripos($this->_agent, 'Vivaldi') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'Vivaldi'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_VIVALDI);
                return true;
            }
        }
        return false;
    }

    /**
     * Determine if the browser is Yandex
     * @return boolean True if the browser is Yandex otherwise false
     */
    protected function checkBrowserYandex()
    {
        if (stripos($this->_agent, 'YaBrowser') !== false) {
            $aresult = explode('/', stristr($this->_agent, 'YaBrowser'));
            if (isset($aresult[1])) {
                $aversion = explode(' ', $aresult[1]);
                $this->setVersion($aversion[0]);
                $this->setBrowser(self::BROWSER_YANDEX);

                if (stripos($this->_agent, 'iPad') !== false) {
                    $this->setTablet(true);
                } elseif (stripos($this->_agent, 'Mobile') !== false) {
                    $this->setMobile(true);
                } elseif (stripos($this->_agent, 'Android') !== false) {
                    $this->setTablet(true);
                }

                return true;
            }
        }

        return false;
    }

    /**
     * Determine if the browser is a PlayStation
     * @return boolean True if the browser is PlayStation otherwise false
     */
    protected function checkBrowserPlayStation()
    {
        if (stripos($this->_agent, 'PlayStation ') !== false) {
            $aresult = explode(' ', stristr($this->_agent, 'PlayStation '));
            $this->setBrowser(self::BROWSER_PLAYSTATION);
            if (isset($aresult[0])) {
                $aversion = explode(')', $aresult[2]);
                $this->setVersion($aversion[0]);
                if (stripos($this->_agent, 'Portable)') !== false || stripos($this->_agent, 'Vita') !== false) {
                    $this->setMobile(true);
                }
                return true;
            }
        }
        return false;
    }

    /**
     * Determine the user's platform (last updated 2.0)
     */
    protected function checkPlatform()
    {
        if (stripos($this->_agent, 'windows') !== false) {
            $this->_platform = self::PLATFORM_WINDOWS;
        } else if (stripos($this->_agent, 'iPad') !== false) {
            $this->_platform = self::PLATFORM_IPAD;
        } else if (stripos($this->_agent, 'iPod') !== false) {
            $this->_platform = self::PLATFORM_IPOD;
        } else if (stripos($this->_agent, 'iPhone') !== false) {
            $this->_platform = self::PLATFORM_IPHONE;
        } elseif (stripos($this->_agent, 'mac') !== false) {
            $this->_platform = self::PLATFORM_APPLE;
        } elseif (stripos($this->_agent, 'android') !== false) {
            $this->_platform = self::PLATFORM_ANDROID;
        } elseif (stripos($this->_agent, 'Silk') !== false) {
            $this->_platform = self::PLATFORM_FIRE_OS;
        } elseif (stripos($this->_agent, 'linux') !== false && stripos($this->_agent, 'SMART-TV') !== false ) {
            $this->_platform = self::PLATFORM_LINUX .'/'.self::PLATFORM_SMART_TV;
        } elseif (stripos($this->_agent, 'linux') !== false) {
            $this->_platform = self::PLATFORM_LINUX;
        } else if (stripos($this->_agent, 'Nokia') !== false) {
            $this->_platform = self::PLATFORM_NOKIA;
        } else if (stripos($this->_agent, 'BlackBerry') !== false) {
            $this->_platform = self::PLATFORM_BLACKBERRY;
        } elseif (stripos($this->_agent, 'FreeBSD') !== false) {
            $this->_platform = self::PLATFORM_FREEBSD;
        } elseif (stripos($this->_agent, 'OpenBSD') !== false) {
            $this->_platform = self::PLATFORM_OPENBSD;
        } elseif (stripos($this->_agent, 'NetBSD') !== false) {
            $this->_platform = self::PLATFORM_NETBSD;
        } elseif (stripos($this->_agent, 'OpenSolaris') !== false) {
            $this->_platform = self::PLATFORM_OPENSOLARIS;
        } elseif (stripos($this->_agent, 'SunOS') !== false) {
            $this->_platform = self::PLATFORM_SUNOS;
        } elseif (stripos($this->_agent, 'OS\/2') !== false) {
            $this->_platform = self::PLATFORM_OS2;
        } elseif (stripos($this->_agent, 'BeOS') !== false) {
            $this->_platform = self::PLATFORM_BEOS;
        } elseif (stripos($this->_agent, 'win') !== false) {
            $this->_platform = self::PLATFORM_WINDOWS;
        } elseif (stripos($this->_agent, 'Playstation') !== false) {
            $this->_platform = self::PLATFORM_PLAYSTATION;
        } elseif (stripos($this->_agent, 'Roku') !== false) {
            $this->_platform = self::PLATFORM_ROKU;
        } elseif (stripos($this->_agent, 'iOS') !== false) {
            $this->_platform = self::PLATFORM_IPHONE . '/' . self::PLATFORM_IPAD;
        } elseif (stripos($this->_agent, 'tvOS') !== false) {
            $this->_platform = self::PLATFORM_APPLE_TV;
        } elseif (stripos($this->_agent, 'curl') !== false) {
            $this->_platform = self::PLATFORM_TERMINAL;
        } elseif (stripos($this->_agent, 'CrOS') !== false) {
            $this->_platform = self::PLATFORM_CHROME_OS;
        } elseif (stripos($this->_agent, 'okhttp') !== false) {
            $this->_platform = self::PLATFORM_JAVA_ANDROID;
        } elseif (stripos($this->_agent, 'PostmanRuntime') !== false) {
            $this->_platform = self::PLATFORM_POSTMAN;
        } elseif (stripos($this->_agent, 'Iframely') !== false) {
            $this->_platform = self::PLATFORM_I_FRAME;
        }

    }
}