2011-08-01 22:53:12 iteye_5904 阅读数 70

 

 

<?php
	/**
	 * File: Browser.php
	 * Author: Chris Schuld (http://chrisschuld.com/)
	 * http://chrisschuld.com/projects/browser-php-detecting-a-users-browser-from-php/
	 * Last Modified: August 20th, 2010
	 * @version 1.9
	 * @package PegasusPHP
	 *
	 * Copyright (C) 2008-2010 Chris Schuld  (chris@chrisschuld.com)
	 *
	 * This program is free software; you can redistribute it and/or
	 * modify it under the terms of the GNU General Public License as
	 * published by the Free Software Foundation; either version 2 of
	 * the License, or (at your option) any later version.
	 *
	 * This program is distributed in the hope that it will be useful,
	 * but WITHOUT ANY WARRANTY; without even the implied warranty of
	 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	 * GNU General Public License for more details at:
	 * http://www.gnu.org/copyleft/gpl.html
	 *
	 *
	 * Typical Usage:
	 *
	 *   $browser = new Browser();
	 *   if( $browser->getBrowser() == Browser::BROWSER_FIREFOX && $browser->getVersion() >= 2 ) {
	 *   	echo 'You have FireFox version 2 or greater';
	 *   }
	 *
	 * User Agents Sampled from: http://www.useragentstring.com/
	 *
	 * This implementation is based on the original work from Gary White
	 * http://apptools.com/phptools/browser/
	 *
	 * UPDATES:
	 *
	 * 2010-08-20 (v1.9):
	 *  + Added MSN Explorer Browser (legacy)
	 *  + Added Bing/MSN Robot (Thanks Rob MacDonald)
	 *  + Added the Android Platform (PLATFORM_ANDROID)
	 *  + Fixed issue with Android 1.6/2.2 (Thanks Tom Hirashima)
	 *
	 * 2010-04-27 (v1.8):
	 *  + Added iPad Support
	 *
	 * 2010-03-07 (v1.7):
	 *  + *MAJOR* Rebuild (preg_match and other "slow" routine removal(s))
	 *  + Almost allof Gary's original code has been replaced
	 *  + Large PHPUNIT testing environment created to validate new releases and additions
	 *  + Added FreeBSD Platform
	 *  + Added OpenBSD Platform
	 *  + Added NetBSD Platform
	 *  + Added SunOS Platform
	 *  + Added OpenSolaris Platform
	 *  + Added support of the Iceweazel Browser
	 *  + Added isChromeFrame() call to check if chromeframe is in use
	 *  + Moved the Opera check in front of the Firefox check due to legacy Opera User Agents
	 *  + Added the __toString() method (Thanks Deano)
	 *
	 * 2009-11-15:
	 *  + Updated the checkes for Firefox
	 *  + Added the NOKIA platform
	 *  + Added Checks for the NOKIA brower(s)
	 *  
	 * 2009-11-08:
	 *  + PHP 5.3 Support
	 *  + Added support for BlackBerry OS and BlackBerry browser
	 *  + Added support for the Opera Mini browser
	 *  + Added additional documenation
	 *  + Added support for isRobot() and isMobile()
	 *  + Added support for Opera version 10
	 *  + Added support for deprecated Netscape Navigator version 9
	 *  + Added support for IceCat
	 *  + Added support for Shiretoko
	 *
	 * 2010-04-27 (v1.8):
	 *  + Added iPad Support
	 *
	 * 2009-08-18:
	 *  + Updated to support PHP 5.3 - removed all deprecated function calls
	 *  + Updated to remove all double quotes (") -- converted to single quotes (')
	 *
	 * 2009-04-27:
	 *  + Updated the IE check to remove a typo and bug (thanks John)
	 *
	 * 2009-04-22:
	 *  + Added detection for GoogleBot
	 *  + Added detection for the W3C Validator.
	 *  + Added detection for Yahoo! Slurp
	 *
	 * 2009-03-14:
	 *  + Added detection for iPods.
	 *  + Added Platform detection for iPhones
	 *  + Added Platform detection for iPods
	 *
	 * 2009-02-16: (Rick Hale)
	 *  + Added version detection for Android phones.
	 *
	 * 2008-12-09:
	 *  + Removed unused constant
	 *
	 * 2008-11-07:
	 *  + Added Google's Chrome to the detection list
	 *  + Added isBrowser(string) to the list of functions special thanks to
	 *Daniel 'mavrick' Lang for the function concept (http://mavrick.id.au)
	 *
	 *
	 * Gary White noted: "Since browser detection is so unreliable, I am
	 * no longer maintaining this script. You are free to use and or
	 * modify/update it as you want, however the author assumes no
	 * responsibility for the accuracy of the detected values."
	 *
	 * Anyone experienced with Gary's script might be interested in these notes:
	 *
	 *   Added class constants
	 *   Added detection and version detection for Google's Chrome
	 *   Updated the version detection for Amaya
	 *   Updated the version detection for Firefox
	 *   Updated the version detection for Lynx
	 *   Updated the version detection for WebTV
	 *   Updated the version detection for NetPositive
	 *   Updated the version detection for IE
	 *   Updated the version detection for OmniWeb
	 *   Updated the version detection for iCab
	 *   Updated the version detection for Safari
	 *   Updated Safari to remove mobile devices (iPhone)
	 *   Added detection for iPhone
	 *   Added detection for robots
	 *   Added detection for mobile devices
	 *   Added detection for BlackBerry
	 *   Removed Netscape checks (matches heavily with firefox & mozilla)
	 *
	 */

	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_ICEWEASEL = 'Iceweasel';// http://www.geticeweasel.org/
		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_IPAD = 'iPad';  // 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_NOKIA_S60 = 'Nokia S60 OSS Browser';// http://en.wikipedia.org/wiki/Web_Browser_for_S60
		const BROWSER_NOKIA = 'Nokia Browser';// * all other WAP-based browsers on the Nokia Platform
		const BROWSER_MSN = 'MSN Browser';// http://explorer.msn.com/
		const BROWSER_MSNBOT = 'MSN Bot'; // http://search.msn.com/msnbot.htm
		  // http://en.wikipedia.org/wiki/Msnbot  (used for Bing as well)
		
		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_IPAD = 'iPad';
		const PLATFORM_BLACKBERRY = 'BlackBerry';
		const PLATFORM_NOKIA = 'Nokia';
		const PLATFORM_FREEBSD = 'FreeBSD';
		const PLATFORM_OPENBSD = 'OpenBSD';
		const PLATFORM_NETBSD = 'NetBSD';
		const PLATFORM_SUNOS = 'SunOS';
		const PLATFORM_OPENSOLARIS = 'OpenSolaris';
		const PLATFORM_ANDROID = 'Android';
		
		const OPERATING_SYSTEM_UNKNOWN = 'unknown';

		public function Browser($useragent="") {
			$this->reset();
			if( $useragent != "" ) {
				$this->setUserAgent($useragent);
			}
			else {
				$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; }
		/**
		 * Set the Browser to be mobile
		 * @param boolean $value is the browser a mobile brower or not
		 */
		protected function setMobile($value=true) { $this->_is_mobile = $value; }
		/**
		 * Set the Browser to be a robot
		 * @param boolean $value is the browser a robot or not
		 */
		protected function setRobot($value=true) { $this->_is_robot = $value; }
		/**
		* 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;
			$this->determine();
		}
		/**
		 * Used to determine if the browser is actually "chromeframe"
		 * @since 1.7
		 * @return boolean True if the browser is using chromeframe
		 */
		public function isChromeFrame() {
			return( strpos($this->_agent,"chromeframe") !== false );
		}
		/**
		* Returns a formatted string with a summary of the details of the browser.
		* @return string formatted string with a summary of the browser
		*/
		public function __toString() {
			return "<strong>Browser Name:</strong>{$this->getBrowser()}<br/>\n" .
			   "<strong>Browser Version:</strong>{$this->getVersion()}<br/>\n" .
			   "<strong>Browser User Agent String:</strong>{$this->getUserAgent()}<br/>\n" .
			   "<strong>Platform:</strong>{$this->getPlatform()}<br/>";
		}
		/**
		 * 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 (
				// well-known, well-used
				// Special Notes:
				// (1) Opera must be checked before FireFox due to the odd
				// user agents used in some older versions of Opera
				// (2) WebTV is strapped onto Internet Explorer so we must
				// check for WebTV before IE
				// (3) (deprecated) Galeon is based on Firefox and needs to be
				// tested before Firefox is tested
				// (4) OmniWeb is based on Safari so OmniWeb check must occur
				// before Safari
				// (5) Netscape 9+ is based on Firefox so Netscape checks
				// before FireFox are necessary
				$this->checkBrowserWebTv() ||
				$this->checkBrowserInternetExplorer() ||
				$this->checkBrowserOpera() ||
				$this->checkBrowserGaleon() ||
				$this->checkBrowserNetscapeNavigator9Plus() ||
				$this->checkBrowserFirefox() ||
				$this->checkBrowserChrome() ||
				$this->checkBrowserOmniWeb() ||

				// common mobile
				$this->checkBrowserAndroid() ||
				$this->checkBrowseriPad() ||
				$this->checkBrowseriPod() ||
				$this->checkBrowseriPhone() ||
				$this->checkBrowserBlackBerry() ||
				$this->checkBrowserNokia() ||

				// common bots
				$this->checkBrowserGoogleBot() ||
				$this->checkBrowserMSNBot() ||
				$this->checkBrowserSlurp() ||

				// WebKit base check (post mobile and others)
				$this->checkBrowserSafari() ||
				
				// everyone else
				$this->checkBrowserNetPositive() ||
				$this->checkBrowserFirebird() ||
				$this->checkBrowserKonqueror() ||
				$this->checkBrowserIcab() ||
				$this->checkBrowserPhoenix() ||
				$this->checkBrowserAmaya() ||
				$this->checkBrowserLynx() ||
				$this->checkBrowserShiretoko() ||
				$this->checkBrowserIceCat() ||
				$this->checkBrowserW3CValidator() ||
				$this->checkBrowserMozilla() /* Mozilla is such an open standard that you must check it last */
			);
	}

	/**
	 * Determine if the user is using a BlackBerry (last updated 1.7)
	 * @return boolean True if the browser is the BlackBerry browser otherwise false
	 */
	protected function checkBrowserBlackBerry() {
		if( stripos($this->_agent,'blackberry') !== false ) {
			$aresult = explode("/",stristr($this->_agent,"BlackBerry"));
			$aversion = explode(' ',$aresult[1]);
			$this->setVersion($aversion[0]);
			$this->_browser_name = self::BROWSER_BLACKBERRY;
			$this->setMobile(true);
			return true;
		}
		return false;
	}

	/**
	 * Determine if the user is using an AOL User Agent (last updated 1.7)
	 * @return boolean True if the browser is from AOL otherwise false
	 */
	protected function checkForAol() {
			$this->setAol(false);
			$this->setAolVersion(self::VERSION_UNKNOWN);

			if( stripos($this->_agent,'aol') !== false ) {
			$aversion = explode(' ',stristr($this->_agent, 'AOL'));
			$this->setAol(true);
			$this->setAolVersion(preg_replace('/[^0-9\.a-z]/i', '', $aversion[1]));
			return true;
		}
		return false;
	}

	/**
	 * Determine if the browser is the GoogleBot or not (last updated 1.7)
	 * @return boolean True if the browser is the GoogletBot otherwise false
	 */
	protected function checkBrowserGoogleBot() {
		if( stripos($this->_agent,'googlebot') !== false ) {
				$aresult = explode('/',stristr($this->_agent,'googlebot'));
				$aversion = explode(' ',$aresult[1]);
				$this->setVersion(str_replace(';','',$aversion[0]));
				$this->_browser_name = self::BROWSER_GOOGLEBOT;
				$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"));
				$aversion = explode(" ",$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 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'));
			$aversion = explode(' ',$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'));
			$aversion = explode(' ',$aresult[1]);
			$this->setVersion($aversion[0]);
			$this->_browser_name = self::BROWSER_W3CVALIDATOR;
			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'));
			$aversion = explode(' ',$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 Internet Explorer or not (last updated 1.7)
	 * @return boolean True if the browser is Internet Explorer otherwise false
	 */
	protected function checkBrowserInternetExplorer() {

		// Test for v1 - v1.5 IE
		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'));
				$this->setBrowser( self::BROWSER_MSN );
				$this->setVersion(str_replace(array('(',')',';'),'',$aresult[1]));
				return true;
			}
			$aresult = explode(' ',stristr(str_replace(';','; ',$this->_agent),'msie'));
			$this->setBrowser( self::BROWSER_IE );
			$this->setVersion(str_replace(array('(',')',';'),'',$aresult[1]));
			return true;
		}
		// Test for Pocket IE
		else if( stripos($this->_agent,'mspie') !== false || stripos($this->_agent,'pocket') !== false ) {
			$aresult = explode(' ',stristr($this->_agent,'mspie'));
			$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);
				$this->setVersion($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);
				$aversion = explode(' ',$aresult[1]);
				$this->setVersion($aversion[0]);
				}
			else {
				$aversion = explode(' ',stristr($resultant,'opera mini'));
				$this->setVersion($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\/(10.*)$/',$resultant,$matches) ) {
				$this->setVersion($matches[1]);
			}
			else if( preg_match('/\//',$resultant) ) {
				$aresult = explode('/',str_replace("("," ",$resultant));
				$aversion = explode(' ',$aresult[1]);
				$this->setVersion($aversion[0]);
			}
			else {
				$aversion = explode(' ',stristr($resultant,'opera'));
				$this->setVersion(isset($aversion[1])?$aversion[1]:"");
			}
			$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'));
			$aversion = explode(' ',$aresult[1]);
			$this->setVersion($aversion[0]);
			$this->setBrowser(self::BROWSER_CHROME);
			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'));
			$aversion = explode(' ',$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'));
			$aversion = explode(' ',$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]);
			$this->setVersion($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]);
			$this->setVersion($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'));
			$this->setVersion($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'));
			$this->setVersion($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'));
			$this->setVersion($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]);
					$this->setBrowser(self::BROWSER_FIREFOX);
					return true;
				}
				else if( preg_match("/Firefox$/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'));
				$aversion = explode(' ',$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'));
			$aversion = explode(' ',$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;
	}

	/**
	 * 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 ) {
			$aresult = explode('/',stristr($this->_agent,'Version'));
			if( isset($aresult[1]) ) {
				$aversion = explode(' ',$aresult[1]);
				$this->setVersion($aversion[0]);
			}
			else $this->setVersion(self::VERSION_UNKNOWN);
			$this->setMobile(true);
			$this->setBrowser(self::BROWSER_IPHONE);
			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 checkBrowseriPad() 
	{
		if( stripos($this->_agent,'iPad') !== 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->setMobile(true);
			$this->setBrowser(self::BROWSER_IPAD);
			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 ) {
			$aresult = explode('/',stristr($this->_agent,'Version'));
			if( isset($aresult[1]) ) {
				$aversion = explode(' ',$aresult[1]);
				$this->setVersion($aversion[0]);
			}
			else $this->setVersion(self::VERSION_UNKNOWN);
			$this->setMobile(true);
			$this->setBrowser(self::BROWSER_IPOD);
			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);
			$this->setMobile(true);
			$this->setBrowser(self::BROWSER_ANDROID);
			return true;
		}
		return false;
	}

	/**
	 * Determine the user's platform (last updated 1.7)
	 */
	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, '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;
	}
}
$browser = new Browser();
echo  $browser->getBrowser().'<br>';
echo  $browser->getVersion().'<br>';
echo  $browser->getPlatform().'<br>';
echo  $browser->getAolVersion().'<br>';
echo  $browser->isMobile().'<br>';

 

 

 

关联:判断来访者所用设备是iPhone、iPad或者电脑(PC) 

 

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

 

 

 

 

 

 

 

 

2013-04-23 17:34:25 u010370878 阅读数 180
<?php
/* 
浏览器类型、版本
*/
 
 echo "<br><br>浏览器类型:".$out_ieos =userBrowser();
 echo "<br><br>操作系统:".$out_system = userOS();
 echo "<br><br>IP地址:".$out_ip = GetIP();
function userBrowser(){  
        $user_OSagent = $_SERVER['HTTP_USER_AGENT'];   
        if(strpos($user_OSagent,"Maxthon") && strpos($user_OSagent,"MSIE")) {   
            $visitor_browser ="Maxthon(Microsoft IE)";   
        }elseif(strpos($user_OSagent,"Maxthon 2.0")) {   
            $visitor_browser ="Maxthon 2.0";   
        }elseif(strpos($user_OSagent,"Maxthon")) {   
            $visitor_browser ="Maxthon";   
        }elseif(strpos($user_OSagent,"MSIE 9.0")) {   
            $visitor_browser ="MSIE 9.0";   
        }elseif(strpos($user_OSagent,"MSIE 8.0")) {   
            $visitor_browser ="MSIE 8.0";   
        }elseif(strpos($user_OSagent,"MSIE 7.0")) {   
            $visitor_browser ="MSIE 7.0";   
        }elseif(strpos($user_OSagent,"MSIE 6.0")) {   
            $visitor_browser ="MSIE 6.0";   
        } elseif(strpos($user_OSagent,"MSIE 5.5")) {   
            $visitor_browser ="MSIE 5.5";   
        } elseif(strpos($user_OSagent,"MSIE 5.0")) {   
            $visitor_browser ="MSIE 5.0";   
        } elseif(strpos($user_OSagent,"MSIE 4.01")) {   
            $visitor_browser ="MSIE 4.01";   
        }elseif(strpos($user_OSagent,"MSIE")) {   
            $visitor_browser ="MSIE 较高版本";   
        }elseif(strpos($user_OSagent,"NetCaptor")) {   
            $visitor_browser ="NetCaptor";   
        } elseif(strpos($user_OSagent,"Netscape")) {   
            $visitor_browser ="Netscape";   
        }elseif(strpos($user_OSagent,"Chrome")) {   
            $visitor_browser ="Chrome";   
        } elseif(strpos($user_OSagent,"Lynx")) {   
            $visitor_browser ="Lynx";   
        } elseif(strpos($user_OSagent,"Opera")) {   
            $visitor_browser ="Opera";   
        } elseif(strpos($user_OSagent,"Konqueror")) {   
            $visitor_browser ="Konqueror";   
        } elseif(strpos($user_OSagent,"Mozilla/5.0")) {   
            $visitor_browser ="Mozilla";   
        } elseif(strpos($user_OSagent,"Firefox")) {   
            $visitor_browser ="Firefox";   
        }elseif(strpos($user_OSagent,"U")) {   
            $visitor_browser ="Firefox";   
        } else {   
            $visitor_browser ="其它";   
        }   
            return $visitor_browser;   
        }  
  

/* 
操作系统类型
*/

function userOS(){  
    $user_OSagent = $_SERVER['HTTP_USER_AGENT'];  
    if(strpos($user_OSagent,"NT 6.1")){  
        $visitor_os ="Windows 7";   
    } elseif(strpos($user_OSagent,"NT 5.1")) {   
        $visitor_os ="Windows XP";   
    } elseif(strpos($user_OSagent,"NT 5.2") && strpos($user_OSagent,"WOW64")){   
        $visitor_os ="Windows XP 64-bit Edition";   
    } elseif(strpos($user_OSagent,"NT 5.2")) {  
        $visitor_os ="Windows 2003";   
    } elseif(strpos($user_OSagent,"NT 6.0")) {  
        $visitor_os ="Windows Vista";   
    } elseif(strpos($user_OSagent,"NT 5.0")) {  
        $visitor_os ="Windows 2000";   
    } elseif(strpos($user_OSagent,"4.9")) {  
        $visitor_os ="Windows ME";  
    } elseif(strpos($user_OSagent,"NT 4")) {  
        $visitor_os ="Windows NT 4.0";  
    } elseif(strpos($user_OSagent,"98")) {  
        $visitor_os ="Windows 98";  
    } elseif(strpos($user_OSagent,"95")) {  
        $visitor_os ="Windows 95";  
    }elseif(strpos($user_OSagent,"NT")) {  
        $visitor_os ="Windows 较高版本";  
    }elseif(strpos($user_OSagent,"Mac")) {  
        $visitor_os ="Mac";  
    } elseif(strpos($user_OSagent,"Linux")) {   
        $visitor_os ="Linux";  
    } elseif(strpos($user_OSagent,"Unix")) {  
        $visitor_os ="Unix";  
    } elseif(strpos($user_OSagent,"FreeBSD")) {  
        $visitor_os ="FreeBSD";  
    } elseif(strpos($user_OSagent,"SunOS")) {  
        $visitor_os ="SunOS";   
    } elseif(strpos($user_OSagent,"BeOS")) {  
        $visitor_os ="BeOS";   
    } elseif(strpos($user_OSagent,"OS/2")) {  
        $visitor_os ="OS/2";  
    } elseif(strpos($user_OSagent,"PC")) {  
        $visitor_os ="Macintosh";  
    } elseif(strpos($user_OSagent,"AIX")) {  
        $visitor_os ="AIX";  
    } elseif(strpos($user_OSagent,"IBM OS/2")) {  
        $visitor_os ="IBM OS/2";  
    } elseif(strpos($user_OSagent,"BSD")) {  
        $visitor_os ="BSD";  
    } elseif(strpos($user_OSagent,"NetBSD")) {  
        $visitor_os ="NetBSD";  
    } else {  
        $visitor_os ="其它操作系统";  
    }  
    return $visitor_os;   
}
function GetIP()
{
if(!empty($_SERVER["HTTP_CLIENT_IP"]))
  $cip = $_SERVER["HTTP_CLIENT_IP"];
else if(!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))
  $cip = $_SERVER["HTTP_X_FORWARDED_FOR"];
else if(!empty($_SERVER["REMOTE_ADDR"]))
  $cip = $_SERVER["REMOTE_ADDR"];
else
  $cip = "无法获取!";
return $cip;
}
?>

2017-10-16 15:52:00 weixin_42580403 阅读数 65
<?php 
/** 
 * @version $1.1$ 
 * @package dinke.net 
 * @copyright &copy; 2008 Dinke.net 
 * @author Dragan Dinic <dragan@dinke.net> 
 */ 

/** 
 * Browser Detection class 
 * contains common static method for 
 * getting browser version and os 
 * 
 * It supports most popular browsers (IE, FF, Safari, Opera, Chrome ...) 
 * As well as some not so popular (lynx etc.) 
 * It doesn't recognize bots (like google, yahooo etc) 
 * 
 * usage 
 * <code> 
 * $browser = Browser_Detection::get_browser($_SERVER['HTTP_USER_AGENT']); 
 * $os = Browser_Detection::get_os($_SERVER['HTTP_USER_AGENT']); 
 * </code> 
 * @access public 
 */ 
class Browser_Detection 
{ 
    
    /** 
     * Get browsername and version 
     * @param string user agent 
     * @return string browser name and version or false if unrecognized 
     * @static 
     * @access public 
     */ 
    function get_browser($useragent) 
    { 
        //check for most popular browsers first 
        //unfortunately that's ie. We also ignore opera and netscape 8 
        //because they sometimes send msie agent 
        if(strpos($useragent,"MSIE") !== false && strpos($useragent,"Opera") === false && strpos($useragent,"Netscape") === false) 
        { 
            //deal with IE 
            $found = preg_match("/MSIE ([0-9]{1}\.[0-9]{1,2})/",$useragent, $mathes); 
            if($found) 
            { 
                return "Internet Explorer " . $mathes[1]; 
            } 
        } 
        elseif(strpos($useragent,"Gecko")) 
        { 
            //deal with Gecko based 
            
            //if firefox 
            $found = preg_match("/Firefox\/([0-9]{1}\.[0-9]{1}(\.[0-9])?)/",$useragent,$mathes); 
            if($found) 
            { 
                return "Mozilla Firefox " . $mathes[1]; 
            } 
            
            //if Netscape (based on gecko) 
            $found = preg_match("/Netscape\/([0-9]{1}\.[0-9]{1}(\.[0-9])?)/",$useragent,$mathes); 
            if($found) 
            { 
                return "Netscape " . $mathes[1]; 
            } 
            
            //check chrome before safari because chrome agent contains both 
            $found = preg_match("/Chrome\/([^\s]+)/",$useragent, $mathes); 
            if($found) 
            { 
                return "Google Chrome " . $mathes[1]; 
            } 
            
            //if Safari (based on gecko) 
            $found = preg_match("/Safari\/([0-9]{2,3}(\.[0-9])?)/",$useragent, $mathes); 
            if($found) 
            { 
                return "Safari " . $mathes[1]; 
            } 
            
            //if Galeon (based on gecko) 
            $found = preg_match("/Galeon\/([0-9]{1}\.[0-9]{1}(\.[0-9])?)/",$useragent,$mathes); 
            if($found) 
            { 
                return "Galeon " . $mathes[1]; 
            } 
            
            //if Konqueror (based on gecko) 
            $found = preg_match("/Konqueror\/([0-9]{1}\.[0-9]{1}(\.[0-9])?)/",$useragent,$mathes); 
            if($found) 
            { 
                return "Konqueror " . $mathes[1]; 
            } 

            //no specific Gecko found 
            //return generic Gecko 
            return "Gecko based"; 
        } 
        
        elseif(strpos($useragent,"Opera") !== false) 
        { 
            //deal with Opera 
            $found = preg_match("/Opera[\/ ]([0-9]{1}\.[0-9]{1}([0-9])?)/",$useragent,$mathes); 
            if($found) 
            { 
                return "Opera " . $mathes[1]; 
            } 
        } 
        elseif (strpos($useragent,"Lynx") !== false) 
        { 
            //deal with Lynx 
            $found = preg_match("/Lynx\/([0-9]{1}\.[0-9]{1}(\.[0-9])?)/",$useragent,$mathes); 
            if($found) 
            { 
                return "Lynx " . $mathes[1]; 
            } 
            
        } 
        elseif (strpos($useragent,"Netscape") !== false) 
        { 
            //NN8 with IE string 
            $found = preg_match("/Netscape\/([0-9]{1}\.[0-9]{1}(\.[0-9])?)/",$useragent,$mathes); 
            if($found) 
            { 
                return "Netscape " . $mathes[1]; 
            } 
        } 
        else 
        { 
            //unrecognized, this should be less than 1% of browsers (not counting bots like google etc)! 
            return false; 
        } 
    } 
    
    /** 
     * Get browsername and version 
     * @param string user agent 
     * @return string os name and version or false in unrecognized os 
     * @static 
     * @access public 
     */ 
    function get_os($useragent) 
    { 
        $useragent = strtolower($useragent); 
        
        //check for (aaargh) most popular first 
        //winxp 
        if(strpos("$useragent","windows nt 5.1") !== false) 
        { 
            return "Windows XP"; 
        } 
        elseif (strpos("$useragent","windows nt 6.0") !== false) 
        { 
            return "Windows Vista"; 
        } 
        elseif (strpos("$useragent","windows 98") !== false) 
        { 
            return "Windows 98"; 
        } 
        elseif (strpos("$useragent","windows nt 5.0") !== false) 
        { 
            return "Windows 2000"; 
        } 
        elseif (strpos("$useragent","windows nt 5.2") !== false) 
        { 
            return "Windows 2003 server"; 
        } 
        elseif (strpos("$useragent","windows nt 6.0") !== false) 
        { 
            return "Windows Vista"; 
        } 
        elseif (strpos("$useragent","windows nt") !== false) 
        { 
            return "Windows NT"; 
        } 
        elseif (strpos("$useragent","win 9x 4.90") !== false && strpos("$useragent","win me")) 
        { 
            return "Windows ME"; 
        } 
        elseif (strpos("$useragent","win ce") !== false) 
        { 
            return "Windows CE"; 
        } 
        elseif (strpos("$useragent","win 9x 4.90") !== false) 
        { 
            return "Windows ME"; 
        } 
        elseif (strpos("$useragent","iphone") !== false) 
        { 
            return "iPhone"; 
        } 
        elseif (strpos("$useragent","mac os x") !== false) 
        { 
            return "Mac OS X"; 
        } 
        elseif (strpos("$useragent","macintosh") !== false) 
        { 
            return "Macintosh"; 
        } 
        elseif (strpos("$useragent","linux") !== false) 
        { 
            return "Linux"; 
        } 
        elseif (strpos("$useragent","freebsd") !== false) 
        { 
            return "Free BSD"; 
        } 
        elseif (strpos("$useragent","symbian") !== false) 
        { 
            return "Symbian"; 
        } 
        else 
        { 
            return false; 
        } 
    } 
} 
?> 

使用方式

<?php

require_once("browser_detection.php");

$browser = Browser_Detection::get_browser($_SERVER['HTTP_USER_AGENT']);
if($browser !== false)
{
    echo "Your browser is $browser <br />";
}

$os = Browser_Detection::get_os($_SERVER['HTTP_USER_AGENT']);

if($os !== false)
{
    echo "Your OS is $os <br />";
}
?> 

 

2020-01-13 09:15:21 weixin_43993175 阅读数 9

检测函数

public function getDisk()
{
    $fp = popen('df -lh | grep -E "^(/)"', "r");
    $rs = fread($fp, 1024);
    pclose($fp);
    $rs       = preg_replace("/\s{2,}/", ' ', $rs);  //把多个空格换成 “_”
    $hd       = explode(" ", $rs);
    $hd_avail = trim($hd[3], 'G');                   //磁盘可用空间大小 单位G

    if ($hd_avail < 8) {
        $message = '当前可用容量:' . $hd_avail;
        $remark  = 'XXXXXX';
        sendDingTalkGroupRobotMessage($message, '提醒!', $remark, 'accessToken');
    }
}

钉钉函数

function sendDingTalkGroupRobotMessage($message, $title, $remark, $accessToken = '', $msgType = 'text', $atAll = false)
{
    date_default_timezone_set('Asia/Shanghai');
    if (!$accessToken) {
        $accessToken = DD_TALK;
    }
    $url = "https://oapi.dingtalk.com/robot/send?access_token=" . $accessToken;
    $data = ['msgtype' => $msgType];
    if ($msgType == 'markdown') {
        $message = " **$title** \n - 内容:$message \n - 备注:$remark \n - 时间:" . date('Y-m-d H:i:s');
        $data['markdown']['title'] = $title;
        $data['markdown']['text']  = $message;
    } else {
        $message = "$title\n - $message\n - 备注:$remark\n - 时间:" . date('Y-m-d H:i:s');
        $data['text']['content'] = $message;
    }
    $data['atMobiles']  = '';
    $data['isAtAll']    = $atAll;
    $messageJson = json_encode($data, JSON_UNESCAPED_UNICODE);
    return curlPostJson($url, $messageJson);
}
2019-12-03 10:37:41 alexhu2010q 阅读数 10

1. 关于死锁,有四种预防等级,从高到低是,死锁预防,死锁避免,死锁检测和死锁恢复,所以银行家算法属于哪一类?
怎么实现寻找安全序列进程的算法和银行家算法?

1. 银行家算法属于死锁避免的算法,
银行家算法其实不难,在设计了寻找安全进程序列的算法的基础上,对于每一个发出资源申请的进程,在剩余资源满足要求资源的情况下,假定给他资源,若剩下的资源和剩下的进程能组成安全序列,则给它资源(给予贷款),若给了之后,其他进程不能组成安全序列,则不给予贷款。
详情见:
https://www.bilibili.com/video/av6538245/?p=79

2. 银行家算法有何弊端?

2. 银行家算法有一个前提,就是对于一个进程,要知道它所需要的最大资源数(也就是要知道你要贷多少钱),但是实际操作过程中,进程的最大资源数往往不能轻易得出来,所以这个算法实际上的用处现在不多。

3. 什么是死锁检测算法,其弊端在哪?

3. 死锁检测算法是每隔一段时间,对资源进行检测,来查一查是否出现了死锁。
弊端:对资源进行检测的时间复杂度是O(m*n^2),m是进程所需要的资源种类数,n是进程数。
这样的检测开销太大了,所以这种算法一般只是用于设计操作系统的调试阶段,实际的操作系统应用过程并不会用到这个东西。
在这里插入图片描述

4. 死锁恢复的操作

4.
正常操作系统中出现死锁毕竟是少数情况,如果正常操作经常出现死锁,是操作系统设计的有问题
但正常的操作系统,对于死锁问题,都是表现的鸵鸟状态,也就是不进行处理,如果出现了问题,再去进行死锁恢复等操作。
出现死锁有两种常规解决办法:
在这里插入图片描述

5. 什么是IPC?实现进程间通信有哪几种方式?

5. Inter-process Communication 进程间通信

  • 管道
    间接通信的方式,管道是父进程为子进程建立的一个通道,一个进程的输出,可以通过管道进行程序重定位,作为另外一个进程的输入,管道实际上是内存里的一块buffer,而且管道之间传输的数据是一以字节流的方式。在这里插入图片描述- 信号
    类似于软件的中断,产生一个通知,走的是系统调用的接口,一个异步打断的方式,开销很小,不能传输数据。
    在这里插入图片描述 - 共享内存
    直接通信的方式,不需要像管道和消息队列那样,做进程的send发送操作和receive接受操作,但是信息同步的部分需要程序员来完成。
    在这里插入图片描述
  • 消息队列
    间接通信的方式,消息队列比管道更好,第一,它所通信的进程不需要有父子关系,第二,它的传递方式可以是数据结构,不一定是字节流。
  • socket套接字
    不完全属于操作系统内容,remain。

6. 具体进程的地址空间如何实现共享内存呢?

6. 可以通过对每一个进程的地址空间内设置一块虚地址空间,利用地址映射机制,将该块地址映射到实际的同一块地址空间上,这样的操作需要页表等机制的配合。
在这里插入图片描述

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