Rilevare smartphone con php

Se abbiamo un sito creato con php e ne stiamo curando la versione mobile, come Italysquare.com che ha la sua versione mobile su un dominio di terzo livello,  possiamo reindirizzare i visitatori che utilizzano uno smartphone per navigare tramite uno script in php che vi trascrivo sotto, e che contiene al suo interno una lista dei più diffusi telefonini orientati al web.

Lo script è liberamente utilizzabile, con licenza Creative Commons come indicato nelle note interne del programma.

Ecco lo script di rilevazione, mentre nella seconda parte, più sotto, c’e'  il codice per richiamarlo.

Spero di avervi facilitato il lavoro, visto che non si trova facilmente uno script cosi’ completo e ho dovuto cercarlo non poco!

Buon lavoro!

<?php
/* *******************************************
// LICENSE INFORMATION
// The code, "Detecting Smartphones Using PHP"
// by Anthony Hand, is licensed under a Creative Commons
// Attribution 3.0 United States License.
//
// Updated 14 December 2009 by A Hand
//   - Added the method for detecting BlackBerry Touch
//        devices like the Storm 1 and 2.
//
// Anthony Hand, ahand@hand-interactive.com
// Web: www.hand-interactive.com
//
// License info: http://creativecommons.org/licenses/by/3.0/us/
//
// This code is provided “AS IS” with no expressed or implied warranty.
// You have the right to use this code or any portion of it
// so long as you provide credit toward myself as the original author.
//
// *******************************************
*/
//**************************
// The uagent_info class encapsulates information about
//   a browser's connection to your web site.
//   You can use it to find out whether the browser asking for
//   your site's content is probably running on a mobile device.
//   The methods were written so you can be as granular as you want.
//   For example, enquiring whether it's as specific as an iPod Touch or
//   as general as a smartphone class device.
//   The object's methods return 1 for true, or 0 for false.
class uagent_info
{
 var $useragent = "";
 var $httpaccept = "";

 //standardized values for true and false.
 var $true = 1;
 var $false = 0;

 //Initialize some initial smartphone string variables.
 var $engineWebKit = 'webkit';
 var $deviceAndroid = 'android';
 var $deviceIphone = 'iphone';
 var $deviceIpod = 'ipod';
 var $deviceSymbian = 'symbian';
 var $deviceS60 = 'series60';
 var $deviceS70 = 'series70';
 var $deviceS80 = 'series80';
 var $deviceS90 = 'series90';
 var $deviceWinMob = 'windows ce';
 var $deviceWindows = 'windows';
 var $deviceIeMob = 'iemobile';
 var $enginePie = "wm5 pie"; //An old Windows Mobile
 var $deviceBB = 'blackberry';
 var $vndRIM = 'vnd.rim'; //Detectable when BB devices emulate IE or Firefox
 var $deviceBBStorm = 'blackberry95';  //Storm 1 and 2
 var $devicePalm = 'palm';
 var $deviceWebOS = 'webos'; //For Palm's new WebOS devices

 var $engineBlazer = 'blazer'; //Old Palm
 var $engineXiino = 'xiino'; //Another old Palm

 //Initialize variables for mobile-specific content.
 var $vndwap = 'vnd.wap';
 var $wml = 'wml';

 //Initialize variables for other random devices and mobile browsers.
 var $deviceBrew = 'brew';
 var $deviceDanger = 'danger';
 var $deviceHiptop = 'hiptop';
 var $devicePlaystation = 'playstation';
 var $deviceNintendoDs = 'nitro';
 var $deviceNintendo = 'nintendo';
 var $deviceWii = 'wii';
 var $deviceXbox = 'xbox';
 var $deviceArchos = 'archos';

 var $engineOpera = "opera"; //Popular browser
 var $engineNetfront = "netfront"; //Common embedded OS browser
 var $engineUpBrowser = 'up.browser'; //common on some phones
 var $engineOpenWeb = 'openweb'; //Transcoding by OpenWave server
 var $deviceMidp = "midp"; //a mobile Java technology
 var $uplink = "up.link";

 var $devicePda = "pda"; //some devices report themselves as PDAs
 var $mini = "mini";  //Some mobile browsers put 'mini' in their names.
 var $mobile = 'mobile'; //Some mobile browsers put 'mobile' in their user agent strings.
 var $mobi = 'mobi'; //Some mobile browsers put 'mobi' in their user agent strings.

 //Use Maemo, Tablet, and Linux to test for Nokia's Internet Tablets.
 var $maemo = 'maemo';
 var $maemoTablet = 'tablet';
 var $linux = 'linux';
 var $qtembedded = "qt embedded"; //for Sony Mylo
 var $mylocom2 = 'com2'; //for Sony Mylo also

 //In some UserAgents, the only clue is the manufacturer.
 var $manuSonyEricsson = "sonyericsson";
 var $manuericsson = "ericsson";
 var $manuSamsung1 = "sec-sgh";
 var $manuSony = "sony";

 //In some UserAgents, the only clue is the operator.
 var $svcDocomo = "docomo";
 var $svcKddi = "kddi";
 var $svcVodafone = "vodafone";

 //**************************
 //The constructor. Initializes several default variables.
 function uagent_info()
 {
 $this->useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
 $this->httpaccept = strtolower($_SERVER['HTTP_ACCEPT']);
 }

 //**************************
 //Returns the contents of the User Agent value, in lower case.
 function Get_Uagent()
 {
 return $this->useragent;
 }

 //**************************
 //Returns the contents of the HTTP Accept value, in lower case.
 function Get_HttpAccept()
 {
 return $this->httpaccept;
 }

 //**************************
 // Detects if the current device is an iPhone.
 function DetectIphone()
 {
 if (stripos($this->useragent, $this->deviceIphone) > -1)
 {
 //The iPod touch says it's an iPhone! So let's disambiguate.
 if ($this->DetectIpod() == $this->true)
 {
 return $this->false;
 }
 else
 return $this->true;
 }
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is an iPod Touch.
 function DetectIpod()
 {
 if (stripos($this->useragent, $this->deviceIpod) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is an iPhone or iPod Touch.
 function DetectIphoneOrIpod()
 {
 //We repeat the searches here because some iPods may report themselves as an iPhone, which would be okay.
 if (stripos($this->useragent, $this->deviceIphone) > -1 ||
 stripos($this->useragent, $this->deviceIpod) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is an Android OS-based device.
 function DetectAndroid()
 {
 if (stripos($this->useragent, $this->deviceAndroid) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is an Android OS-based device and
 //   the browser is based on WebKit.
 function DetectAndroidWebKit()
 {
 if ($this->DetectAndroid() == $this->true)
 {
 if ($this->DetectWebkit() == $this->true)
 {
 return $this->true;
 }
 else
 return $this->false;
 }
 else
 return $this->false;
 }

 //**************************
 // Detects if the current browser is based on WebKit.
 function DetectWebkit()
 {
 if (stripos($this->useragent, $this->engineWebKit) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current browser is the Nokia S60 Open Source Browser.
 function DetectS60OssBrowser()
 {
 //First, test for WebKit, then make sure it's either Symbian or S60.
 if ($this->DetectWebkit() == $this->true)
 {
 if (stripos($this->useragent, $this->deviceSymbian) > -1 ||
 stripos($this->useragent, $this->deviceS60) > -1)
 {
 return $this->true;
 }
 else
 return $this->false;
 }
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is any Symbian OS-based device,
 //   including older S60, Series 70, Series 80, Series 90, and UIQ,
 //   or other browsers running on these devices.
 function DetectSymbianOS()
 {
 if (stripos($this->useragent, $this->deviceSymbian) > -1 ||
 stripos($this->useragent, $this->deviceS60) > -1 ||
 stripos($this->useragent, $this->deviceS70) > -1 ||
 stripos($this->useragent, $this->deviceS80) > -1 ||
 stripos($this->useragent, $this->deviceS90) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current browser is a Windows Mobile device.
 function DetectWindowsMobile()
 {
 //Most devices use 'Windows CE', but some report 'iemobile'
 //  and some older ones report as 'PIE' for Pocket IE.
 if (stripos($this->useragent, $this->deviceWinMob) > -1 ||
 stripos($this->useragent, $this->deviceIeMob) > -1 ||
 stripos($this->useragent, $this->enginePie) > -1)
 return $this->true;
 if ($this->DetectWapWml() == $this->true &&
 stripos($this->useragent, $this->deviceWindows) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current browser is a BlackBerry of some sort.
 function DetectBlackBerry()
 {
 if (stripos($this->useragent, $this->deviceBB) > -1)
 return $this->true;
 if (stripos($this->httpaccept, $this->vndRIM) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current browser is a BlackBerry Touch
 //    device, such as the Storm.
 function DetectBlackBerryTouch()
 {
 if (stripos($this->useragent, $this->deviceBBStorm) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current browser is on a PalmOS device.
 function DetectPalmOS()
 {
 //Most devices nowadays report as 'Palm', but some older ones reported as Blazer or Xiino.
 if (stripos($this->useragent, $this->devicePalm) > -1 ||
 stripos($this->useragent, $this->engineBlazer) > -1 ||
 stripos($this->useragent, $this->engineXiino) > -1)
 {
 //Make sure it's not WebOS first
 if ($this->DetectPalmWebOS() == $this->true)
 return $this->false;
 else
 return $this->true;
 }
 else
 return $this->false;
 }

 //**************************
 // Detects if the current browser is on a Palm device
 //   running the new WebOS.
 function DetectPalmWebOS()
 {
 if (stripos($this->useragent, $this->deviceWebOS) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Check to see whether the device is any device
 //   in the 'smartphone' category.
 function DetectSmartphone()
 {
 if ($this->DetectIphoneOrIpod() == $this->true)
 return $this->true;
 if ($this->DetectS60OssBrowser() == $this->true)
 return $this->true;
 if ($this->DetectSymbianOS() == $this->true)
 return $this->true;
 if ($this->DetectWindowsMobile() == $this->true)
 return $this->true;
 if ($this->DetectBlackBerry() == $this->true)
 return $this->true;
 if ($this->DetectPalmOS() == $this->true)
 return $this->true;
 if ($this->DetectPalmWebOS() == $this->true)
 return $this->true;
 if ($this->DetectAndroid() == $this->true)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects whether the device is a Brew-powered device.
 function DetectBrewDevice()
 {
 if (stripos($this->useragent, $this->deviceBrew) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects the Danger Hiptop device.
 function DetectDangerHiptop()
 {
 if (stripos($this->useragent, $this->deviceDanger) > -1 ||
 stripos($this->useragent, $this->deviceHiptop) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current browser is Opera Mobile or Mini.
 function DetectOperaMobile()
 {
 if (stripos($this->useragent, $this->engineOpera) > -1)
 {
 if ((stripos($this->useragent, $this->mini) > -1) ||
 (stripos($this->useragent, $this->mobi) > -1))
 {
 return $this->true;
 }
 else
 return $this->false;
 }
 else
 return $this->false;
 }

 //**************************
 // Detects whether the device supports WAP or WML.
 function DetectWapWml()
 {
 if (stripos($this->httpaccept, $this->vndwap) > -1 ||
 stripos($this->httpaccept, $this->wml) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // The quick way to detect for a mobile device.
 //   Will probably detect most recent/current mid-tier Feature Phones
 //   as well as smartphone-class devices.
 function DetectMobileQuick()
 {
 //Ordered roughly by market share, WAP/XML > Brew > Smartphone.
 if ($this->DetectWapWml() == $this->true)
 return $this->true;
 if ($this->DetectBrewDevice() == $this->true)
 return $this->true;
 if ($this->DetectOperaMobile() == $this->true)
 return $this->true;
 if (stripos($this->useragent, $this->engineUpBrowser) > -1)
 return $this->true;
 if (stripos($this->useragent, $this->engineOpenWeb) > -1)
 return $this->true;
 if (stripos($this->useragent, $this->deviceMidp) > -1)
 return $this->true;
 if ($this->DetectSmartphone() == $this->true)
 return $this->true;
 if ($this->DetectDangerHiptop() == $this->true)
 return $this->true;

 if ($this->DetectMidpCapable() == $this->true)
 return $this->true;

 if (stripos($this->useragent, $this->devicePda) > -1)
 return $this->true;
 if (stripos($this->useragent, $this->mobile) > -1)
 return $this->true;

 //Detect older phones from certain manufacturers and operators.
 if (stripos($this->useragent, $this->uplink) > -1)
 return $this->true;
 if (stripos($this->useragent, $this->manuSonyEricsson) > -1)
 return $this->true;
 if (stripos($this->useragent, $this->manuericsson) > -1)
 return $this->true;
 if (stripos($this->useragent, $this->manuSamsung1) > -1)
 return $this->true;
 if (stripos($this->useragent, $this->svcDocomo) > -1)
 return $this->true;
 if (stripos($this->useragent, $this->svcKddi) > -1)
 return $this->true;
 if (stripos($this->useragent, $this->svcVodafone) > -1)
 return $this->true;

 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is a Sony Playstation.
 function DetectSonyPlaystation()
 {
 if (stripos($this->useragent, $this->devicePlaystation) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is a Nintendo game device.
 function DetectNintendo()
 {
 if (stripos($this->useragent, $this->deviceNintendo) > -1 ||
 stripos($this->useragent, $this->deviceWii) > -1 ||
 stripos($this->useragent, $this->deviceNintendoDs) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is a Microsoft Xbox.
 function DetectXbox()
 {
 if (stripos($this->useragent, $this->deviceXbox) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is an Internet-capable game console.
 function DetectGameConsole()
 {
 if ($this->DetectSonyPlaystation() == $this->true)
 return $this->true;
 else if ($this->DetectNintendo() == $this->true)
 return $this->true;
 else if ($this->DetectXbox() == $this->true)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device supports MIDP, a mobile Java technology.
 function DetectMidpCapable()
 {
 if (stripos($this->useragent, $this->deviceMidp) > -1 ||
 stripos($this->httpaccept, $this->deviceMidp) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is on one of the Maemo-based Nokia Internet Tablets.
 function DetectMaemoTablet()
 {
 if (stripos($this->useragent, $this->maemo) > -1)
 return $this->true;
 //Must be Linux + Tablet, or else it could be something else.
 else if (stripos($this->useragent, $this->maemoTablet) > -1 &&
 stripos($this->useragent, $this->linux) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current device is an Archos media player/Internet tablet.
 function DetectArchos()
 {
 if (stripos($this->useragent, $this->deviceArchos) > -1)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // Detects if the current browser is a Sony Mylo device.
 function DetectSonyMylo()
 {
 if (stripos($this->useragent, $this->manuSony) > -1)
 {
 if ((stripos($this->useragent, $this->qtembedded) > -1) ||
 (stripos($this->useragent, $this->mylocom2) > -1))
 {
 return $this->true;
 }
 else
 return $this->false;
 }
 else
 return $this->false;
 }

 //**************************
 // The longer and more thorough way to detect for a mobile device.
 //   Will probably detect most feature phones,
 //   smartphone-class devices, Internet Tablets,
 //   Internet-enabled game consoles, etc.
 //   This ought to catch a lot of the more obscure and older devices, also --
 //   but no promises on thoroughness!
 function DetectMobileLong()
 {
 if ($this->DetectMobileQuick() == $this->true)
 return $this->true;
 if ($this->DetectMaemoTablet() == $this->true)
 return $this->true;
 if ($this->DetectGameConsole() == $this->true)
 return $this->true;

 else
 return $this->false;
 }

 //*****************************
 // For Mobile Web Site Design
 //*****************************

 //**************************
 // The quick way to detect for a tier of devices.
 //   This method detects for devices which can
 //   display iPhone-optimized web content.
 //   Includes iPhone, iPod Touch, Android, WebOS, etc.
 function DetectTierIphone()
 {
 if ($this->DetectIphoneOrIpod() == $this->true)
 return $this->true;
 if ($this->DetectAndroid() == $this->true)
 return $this->true;
 if ($this->DetectAndroidWebKit() == $this->true)
 return $this->true;
 if ($this->DetectPalmWebOS() == $this->true)
 return $this->true;
 else
 return $this->false;
 }

 //**************************
 // The quick way to detect for a tier of devices.
 //   This method detects for all smartphones, but
 //   excludes iPhones and iPod Touches.
 function DetectTierSmartphones()
 {
 if ($this->DetectSmartphone() == $this->true)
 {
 if ($this->DetectTierIphone() == $this->true)
 {
 return $this->false;
 }
 else
 return $this->true;
 }
 else
 return $this->false;
 }

 //**************************
 // The quick way to detect for a tier of devices.
 //   This method detects for all other types of phones,
 //   but excludes the iPhone and Smartphone Tier devices.
 function DetectTierOtherPhones()
 {
 if ($this->DetectMobileQuick() == $this->true)
 {
 if ($this->DetectTierIphone() == $this->true)
 {
 return $this->false;
 }
 if ($this->DetectTierSmartphones() == $this->true)
 {
 return $this->false;
 }
 else
 return $this->true;
 }
 else
 return $this->false;
 }

}
?>

Dopo basterà  inserire subito all’inizio della index.php del sito “normale” non mobile,  o anche in altre pagine interne:

include "includes/m_detect.php";
$mobile = new uagent_info;
if ($mobile->DetectMobileQuick())
{
 header("Location: http://mobile.italysquare.com/");
 exit;
 }