Confusion on setting up mobile browser detection

franimaldoc
franimaldoc used Ask the Experts™
on


Hi -

While I have created a website (www.aboutPageArizona.com) that's pretty simple in programming, all done in html. So I'm not exactly a newbie but not particularly savvy about new stuff, so this may be a dumb question.
Forgive me if that's so.

My analytics for the above site tell me that fully a quarter of my visitors are coming to me on some sort of mobile unit. Having read a couple books on the subject, I'm trying to set up 4 or 5 versions of the site for the different mobile options, the different display sizes.

The mobile detection script I purchased (www.detectmobilebrowsers.com) has the option of sending iPhones, Blackberries, Droids, etc (types of phones) to a certain URL or to 'Treat like a mobile device'. Since I want to send these specific devices to a certain URL, this is not the problem.

The problem arises in that I am given the same choices when mobile browsers ( Opera mini, or Windows 7) are detected. Since my understanding is that these browsers span quite a few devices of different display sizes, I'm not sure where to send these. It also now raises the question of what is meant by treating these devices as mobile.

Are any of you familiar with this software, and if you are, can you help me sort out the best choices I can make here?

Any help would be greatly appreciated.
Thanks for your time,
Fran

<?php

/*

  This code is from http://detectmobilebrowsers.mobi/ - please do not republish it without due credit and hyperlink to http://detectmobilebrowsers.mobi/ really, i'd prefer it if it wasn't republished in full as that way it's main source is it's homepage and it's always kept up to date
  
  For help generating the function call visit http://detectmobilebrowsers.mobi/ and use the function generator. If you need serious help with this please drop me an email to andy@andymoore.info with the subject 'DETECTION CODE PAID SUPPORT REUQEST' with a detailed outline of what you need and how I can help and I will get back to you with a proposal for integration.
  
  Published by Andy Moore - .mobi certified mobile web developer - http://andymoore.info/

  This code is free to download and use on non-profit websites, if your website makes a profit or you require support using this code please upgrade.

  Please upgrade for use on commercial websites http://detectmobilebrowsers.mobi/?volume=49999

  To submit a support request please forward your PayPal receipt with your questions to the email address you sent the money to and I will endeavour to get back to you. It might take me a few days but I reply to all support issues with as much helpful info as I can provide. Though really everything is published on the site.

  The function has eight parameters that can be passed to it which define the way it handles different scenarios. These paramaters are:

    * iPhone - Set to true to treat iPhones as mobiles, false to treat them like full browsers or set a URL (including http://) to redirect iPhones and iPods to.
    * Android - Set to true to treat Android handsets as mobiles, false to treat them like full browsers or set a URL (including http://) to redirect Android and Google mobile users to.
    * Opera Mini - Set to true to treat Opera Mini like a mobile, false to treat it like full browser or set a URL (including http://) to redirect Opera Mini users to.
    * Blackberry - Set to true to treat Blackberry like a mobile, false to treat it like full browser or set a URL (including http://) to redirect Blackberry users to.
    * Palm - Set to true to treat Palm OS like a mobile, false to treat it like full browser or set a URL (including http://) to redirect Palm OS users to.
    * Windows - Set to true to treat Windows Mobiles like a mobile, false to treat it like full browser or set a URL (including http://) to redirect Windows Mobile users to.
    * Mobile Redirect URL - This should be full web address (including http://) of the site (or page) you want to send mobile visitors to. Leaving this blank will make the script return true when it detects a mobile.
    * Desktop Redirect URL - This should be full web address (including http://) of the site (or page) you want to send non-mobile visitors to. Leaving this blank will make the script return false when it fails to detect a mobile.

Change Log:

    * 25.11.08 - Added Amazon's Kindle to the pipe seperated array
    * 27.11.08 - Added support for Blackberry options
    * 27.01.09 - Added usage samples & help with PHP in HTML - .zip
    * 09.03.09 - Added support for Windows Mobile options
    * 09.03.09 - Removed 'ppc;'=>'ppc;', from array to reduce false positives
    * 09.03.09 - Added support for Palm OS options
    * 09.03.09 - Added sample .htaccess html.html and help.html files to download
    * 16.03.09 - Edited sample .htaccess file - now works with GoDaddy
    * 14.08.09 - Reduced false positives
    * 14.08.09 - Added Palm Pre
    * 14.08.09 - Added answer about search engine spiders
    * 14.08.09 - Added status variable to report back it's findings for debugging
    * 14.08.09 - Added Torch Mobile Iris Browser to Windows Mobile section
    * 14.08.09 - Added HTC Touch 3G to Windows Mobile section
    * 14.08.09 - Added help links to PHP header and setup PHP in HTML
    * 14.08.09 - Added six usage examples
    * 15.08.09 - Checked against the list of agents in the WURFL - 99.27% detected!
          o 11,489 mobile user agent strings checked
          o 99.27% detection rate after a number of small changes
          o Those user agent strings listed that are not detected are either robots or too generic for user agent detection
          o Any mobiles not detected by their user agent would most likely return true as they'd be detected by the headers they add.
    * 20.11.09 - Removed PDA from the piped array to stop false positives
    * 22.12.09 - Moved the site to a server hosted at Rackspace
    * 23.12.09 - Added support for Mozilla Fennec
    * 23.04.10 - Added support for the Apple iPad
          o Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B367 Safari/531.21.10
          o Mozilla/5.0 (iPad; U; CPU iPhone OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Mobile/7D11
          o Mozilla/5.0 (iPad; U; CPU iPhone OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B317 Safari/531.21.10
    * 23.04.10 - Changed all eregi function calls to preg_match
    * 23.04.10 - Added two more examples
          o Added example-7.php which allows switching between desktop and mobile versions
          o Added example-8.php which shows why the script made the decision it did
    * No longer using include, using require_once instead

bug fixes with many thanks and much credit to http://www.punchkickinteractive.com/ - thanks Ryan!

*/

function mobile_device_detect($iphone=true,$ipad=true,$android=true,$opera=true,$blackberry=true,$palm=true,$windows=true,$mobileredirect=false,$desktopredirect=false){

  $mobile_browser   = false; // set mobile browser as false till we can prove otherwise
  $user_agent       = $_SERVER['HTTP_USER_AGENT']; // get the user agent value - this should be cleaned to ensure no nefarious input gets executed
  $accept           = $_SERVER['HTTP_ACCEPT']; // get the content accept value - this should be cleaned to ensure no nefarious input gets executed

  switch(true){ // using a switch against the following statements which could return true is more efficient than the previous method of using if statements

    case (preg_match('/ipad/i',$user_agent)); // we find the word ipad in the user agent
      $mobile_browser = $ipad; // mobile browser is either true or false depending on the setting of ipad when calling the function
      $status = 'Apple iPad';
      if(substr($ipad,0,4)=='http'){ // does the value of ipad resemble a url
        $mobileredirect = $ipad; // set the mobile redirect url to the url value stored in the ipad value
      } // ends the if for ipad being a url
    break; // break out and skip the rest if we've had a match on the ipad // this goes before the iphone to catch it else it would return on the iphone instead

    case (preg_match('/ipod/i',$user_agent)||preg_match('/iphone/i',$user_agent)); // we find the words iphone or ipod in the user agent
      $mobile_browser = $iphone; // mobile browser is either true or false depending on the setting of iphone when calling the function
      $status = 'Apple';
      if(substr($iphone,0,4)=='http'){ // does the value of iphone resemble a url
        $mobileredirect = $iphone; // set the mobile redirect url to the url value stored in the iphone value
      } // ends the if for iphone being a url
    break; // break out and skip the rest if we've had a match on the iphone or ipod

    case (preg_match('/android/i',$user_agent));  // we find android in the user agent
      $mobile_browser = $android; // mobile browser is either true or false depending on the setting of android when calling the function
      $status = 'Android';
      if(substr($android,0,4)=='http'){ // does the value of android resemble a url
        $mobileredirect = $android; // set the mobile redirect url to the url value stored in the android value
      } // ends the if for android being a url
    break; // break out and skip the rest if we've had a match on android

    case (preg_match('/opera mini/i',$user_agent)); // we find opera mini in the user agent
      $mobile_browser = $opera; // mobile browser is either true or false depending on the setting of opera when calling the function
      $status = 'Opera';
      if(substr($opera,0,4)=='http'){ // does the value of opera resemble a rul
        $mobileredirect = $opera; // set the mobile redirect url to the url value stored in the opera value
      } // ends the if for opera being a url 
    break; // break out and skip the rest if we've had a match on opera

    case (preg_match('/blackberry/i',$user_agent)); // we find blackberry in the user agent
      $mobile_browser = $blackberry; // mobile browser is either true or false depending on the setting of blackberry when calling the function
      $status = 'Blackberry';
      if(substr($blackberry,0,4)=='http'){ // does the value of blackberry resemble a rul
        $mobileredirect = $blackberry; // set the mobile redirect url to the url value stored in the blackberry value
      } // ends the if for blackberry being a url 
    break; // break out and skip the rest if we've had a match on blackberry

    case (preg_match('/(pre\/|palm os|palm|hiptop|avantgo|plucker|xiino|blazer|elaine)/i',$user_agent)); // we find palm os in the user agent - the i at the end makes it case insensitive
      $mobile_browser = $palm; // mobile browser is either true or false depending on the setting of palm when calling the function
      $status = 'Palm';
      if(substr($palm,0,4)=='http'){ // does the value of palm resemble a rul
        $mobileredirect = $palm; // set the mobile redirect url to the url value stored in the palm value
      } // ends the if for palm being a url 
    break; // break out and skip the rest if we've had a match on palm os

    case (preg_match('/(iris|3g_t|windows ce|opera mobi|windows ce; smartphone;|windows ce; iemobile)/i',$user_agent)); // we find windows mobile in the user agent - the i at the end makes it case insensitive
      $mobile_browser = $windows; // mobile browser is either true or false depending on the setting of windows when calling the function
      $status = 'Windows Smartphone';
      if(substr($windows,0,4)=='http'){ // does the value of windows resemble a rul
        $mobileredirect = $windows; // set the mobile redirect url to the url value stored in the windows value
      } // ends the if for windows being a url 
    break; // break out and skip the rest if we've had a match on windows

    case (preg_match('/(mini 9.5|vx1000|lge |m800|e860|u940|ux840|compal|wireless| mobi|ahong|lg380|lgku|lgu900|lg210|lg47|lg920|lg840|lg370|sam-r|mg50|s55|g83|t66|vx400|mk99|d615|d763|el370|sl900|mp500|samu3|samu4|vx10|xda_|samu5|samu6|samu7|samu9|a615|b832|m881|s920|n210|s700|c-810|_h797|mob-x|sk16d|848b|mowser|s580|r800|471x|v120|rim8|c500foma:|160x|x160|480x|x640|t503|w839|i250|sprint|w398samr810|m5252|c7100|mt126|x225|s5330|s820|htil-g1|fly v71|s302|-x113|novarra|k610i|-three|8325rc|8352rc|sanyo|vx54|c888|nx250|n120|mtk |c5588|s710|t880|c5005|i;458x|p404i|s210|c5100|teleca|s940|c500|s590|foma|samsu|vx8|vx9|a1000|_mms|myx|a700|gu1100|bc831|e300|ems100|me701|me702m-three|sd588|s800|8325rc|ac831|mw200|brew |d88|htc\/|htc_touch|355x|m50|km100|d736|p-9521|telco|sl74|ktouch|m4u\/|me702|8325rc|kddi|phone|lg |sonyericsson|samsung|240x|x320|vx10|nokia|sony cmd|motorola|up.browser|up.link|mmp|symbian|smartphone|midp|wap|vodafone|o2|pocket|kindle|mobile|psp|treo)/i',$user_agent)); // check if any of the values listed create a match on the user agent - these are some of the most common terms used in agents to identify them as being mobile devices - the i at the end makes it case insensitive
      $mobile_browser = true; // set mobile browser to true
      $status = 'Mobile matched on piped preg_match';
    break; // break out and skip the rest if we've preg_match on the user agent returned true 

    case ((strpos($accept,'text/vnd.wap.wml')>0)||(strpos($accept,'application/vnd.wap.xhtml+xml')>0)); // is the device showing signs of support for text/vnd.wap.wml or application/vnd.wap.xhtml+xml
      $mobile_browser = true; // set mobile browser to true
      $status = 'Mobile matched on content accept header';
    break; // break out and skip the rest if we've had a match on the content accept headers

    case (isset($_SERVER['HTTP_X_WAP_PROFILE'])||isset($_SERVER['HTTP_PROFILE'])); // is the device giving us a HTTP_X_WAP_PROFILE or HTTP_PROFILE header - only mobile devices would do this
      $mobile_browser = true; // set mobile browser to true
      $status = 'Mobile matched on profile headers being set';
    break; // break out and skip the final step if we've had a return true on the mobile specfic headers

    case (in_array(strtolower(substr($user_agent,0,4)),array('1207'=>'1207','3gso'=>'3gso','4thp'=>'4thp','501i'=>'501i','502i'=>'502i','503i'=>'503i','504i'=>'504i','505i'=>'505i','506i'=>'506i','6310'=>'6310','6590'=>'6590','770s'=>'770s','802s'=>'802s','a wa'=>'a wa','acer'=>'acer','acs-'=>'acs-','airn'=>'airn','alav'=>'alav','asus'=>'asus','attw'=>'attw','au-m'=>'au-m','aur '=>'aur ','aus '=>'aus ','abac'=>'abac','acoo'=>'acoo','aiko'=>'aiko','alco'=>'alco','alca'=>'alca','amoi'=>'amoi','anex'=>'anex','anny'=>'anny','anyw'=>'anyw','aptu'=>'aptu','arch'=>'arch','argo'=>'argo','bell'=>'bell','bird'=>'bird','bw-n'=>'bw-n','bw-u'=>'bw-u','beck'=>'beck','benq'=>'benq','bilb'=>'bilb','blac'=>'blac','c55/'=>'c55/','cdm-'=>'cdm-','chtm'=>'chtm','capi'=>'capi','cond'=>'cond','craw'=>'craw','dall'=>'dall','dbte'=>'dbte','dc-s'=>'dc-s','dica'=>'dica','ds-d'=>'ds-d','ds12'=>'ds12','dait'=>'dait','devi'=>'devi','dmob'=>'dmob','doco'=>'doco','dopo'=>'dopo','el49'=>'el49','erk0'=>'erk0','esl8'=>'esl8','ez40'=>'ez40','ez60'=>'ez60','ez70'=>'ez70','ezos'=>'ezos','ezze'=>'ezze','elai'=>'elai','emul'=>'emul','eric'=>'eric','ezwa'=>'ezwa','fake'=>'fake','fly-'=>'fly-','fly_'=>'fly_','g-mo'=>'g-mo','g1 u'=>'g1 u','g560'=>'g560','gf-5'=>'gf-5','grun'=>'grun','gene'=>'gene','go.w'=>'go.w','good'=>'good','grad'=>'grad','hcit'=>'hcit','hd-m'=>'hd-m','hd-p'=>'hd-p','hd-t'=>'hd-t','hei-'=>'hei-','hp i'=>'hp i','hpip'=>'hpip','hs-c'=>'hs-c','htc '=>'htc ','htc-'=>'htc-','htca'=>'htca','htcg'=>'htcg','htcp'=>'htcp','htcs'=>'htcs','htct'=>'htct','htc_'=>'htc_','haie'=>'haie','hita'=>'hita','huaw'=>'huaw','hutc'=>'hutc','i-20'=>'i-20','i-go'=>'i-go','i-ma'=>'i-ma','i230'=>'i230','iac'=>'iac','iac-'=>'iac-','iac/'=>'iac/','ig01'=>'ig01','im1k'=>'im1k','inno'=>'inno','iris'=>'iris','jata'=>'jata','java'=>'java','kddi'=>'kddi','kgt'=>'kgt','kgt/'=>'kgt/','kpt '=>'kpt ','kwc-'=>'kwc-','klon'=>'klon','lexi'=>'lexi','lg g'=>'lg g','lg-a'=>'lg-a','lg-b'=>'lg-b','lg-c'=>'lg-c','lg-d'=>'lg-d','lg-f'=>'lg-f','lg-g'=>'lg-g','lg-k'=>'lg-k','lg-l'=>'lg-l','lg-m'=>'lg-m','lg-o'=>'lg-o','lg-p'=>'lg-p','lg-s'=>'lg-s','lg-t'=>'lg-t','lg-u'=>'lg-u','lg-w'=>'lg-w','lg/k'=>'lg/k','lg/l'=>'lg/l','lg/u'=>'lg/u','lg50'=>'lg50','lg54'=>'lg54','lge-'=>'lge-','lge/'=>'lge/','lynx'=>'lynx','leno'=>'leno','m1-w'=>'m1-w','m3ga'=>'m3ga','m50/'=>'m50/','maui'=>'maui','mc01'=>'mc01','mc21'=>'mc21','mcca'=>'mcca','medi'=>'medi','meri'=>'meri','mio8'=>'mio8','mioa'=>'mioa','mo01'=>'mo01','mo02'=>'mo02','mode'=>'mode','modo'=>'modo','mot '=>'mot ','mot-'=>'mot-','mt50'=>'mt50','mtp1'=>'mtp1','mtv '=>'mtv ','mate'=>'mate','maxo'=>'maxo','merc'=>'merc','mits'=>'mits','mobi'=>'mobi','motv'=>'motv','mozz'=>'mozz','n100'=>'n100','n101'=>'n101','n102'=>'n102','n202'=>'n202','n203'=>'n203','n300'=>'n300','n302'=>'n302','n500'=>'n500','n502'=>'n502','n505'=>'n505','n700'=>'n700','n701'=>'n701','n710'=>'n710','nec-'=>'nec-','nem-'=>'nem-','newg'=>'newg','neon'=>'neon','netf'=>'netf','noki'=>'noki','nzph'=>'nzph','o2 x'=>'o2 x','o2-x'=>'o2-x','opwv'=>'opwv','owg1'=>'owg1','opti'=>'opti','oran'=>'oran','p800'=>'p800','pand'=>'pand','pg-1'=>'pg-1','pg-2'=>'pg-2','pg-3'=>'pg-3','pg-6'=>'pg-6','pg-8'=>'pg-8','pg-c'=>'pg-c','pg13'=>'pg13','phil'=>'phil','pn-2'=>'pn-2','pt-g'=>'pt-g','palm'=>'palm','pana'=>'pana','pire'=>'pire','pock'=>'pock','pose'=>'pose','psio'=>'psio','qa-a'=>'qa-a','qc-2'=>'qc-2','qc-3'=>'qc-3','qc-5'=>'qc-5','qc-7'=>'qc-7','qc07'=>'qc07','qc12'=>'qc12','qc21'=>'qc21','qc32'=>'qc32','qc60'=>'qc60','qci-'=>'qci-','qwap'=>'qwap','qtek'=>'qtek','r380'=>'r380','r600'=>'r600','raks'=>'raks','rim9'=>'rim9','rove'=>'rove','s55/'=>'s55/','sage'=>'sage','sams'=>'sams','sc01'=>'sc01','sch-'=>'sch-','scp-'=>'scp-','sdk/'=>'sdk/','se47'=>'se47','sec-'=>'sec-','sec0'=>'sec0','sec1'=>'sec1','semc'=>'semc','sgh-'=>'sgh-','shar'=>'shar','sie-'=>'sie-','sk-0'=>'sk-0','sl45'=>'sl45','slid'=>'slid','smb3'=>'smb3','smt5'=>'smt5','sp01'=>'sp01','sph-'=>'sph-','spv '=>'spv ','spv-'=>'spv-','sy01'=>'sy01','samm'=>'samm','sany'=>'sany','sava'=>'sava','scoo'=>'scoo','send'=>'send','siem'=>'siem','smar'=>'smar','smit'=>'smit','soft'=>'soft','sony'=>'sony','t-mo'=>'t-mo','t218'=>'t218','t250'=>'t250','t600'=>'t600','t610'=>'t610','t618'=>'t618','tcl-'=>'tcl-','tdg-'=>'tdg-','telm'=>'telm','tim-'=>'tim-','ts70'=>'ts70','tsm-'=>'tsm-','tsm3'=>'tsm3','tsm5'=>'tsm5','tx-9'=>'tx-9','tagt'=>'tagt','talk'=>'talk','teli'=>'teli','topl'=>'topl','hiba'=>'hiba','up.b'=>'up.b','upg1'=>'upg1','utst'=>'utst','v400'=>'v400','v750'=>'v750','veri'=>'veri','vk-v'=>'vk-v','vk40'=>'vk40','vk50'=>'vk50','vk52'=>'vk52','vk53'=>'vk53','vm40'=>'vm40','vx98'=>'vx98','virg'=>'virg','vite'=>'vite','voda'=>'voda','vulc'=>'vulc','w3c '=>'w3c ','w3c-'=>'w3c-','wapj'=>'wapj','wapp'=>'wapp','wapu'=>'wapu','wapm'=>'wapm','wig '=>'wig ','wapi'=>'wapi','wapr'=>'wapr','wapv'=>'wapv','wapy'=>'wapy','wapa'=>'wapa','waps'=>'waps','wapt'=>'wapt','winc'=>'winc','winw'=>'winw','wonu'=>'wonu','x700'=>'x700','xda2'=>'xda2','xdag'=>'xdag','yas-'=>'yas-','your'=>'your','zte-'=>'zte-','zeto'=>'zeto','acs-'=>'acs-','alav'=>'alav','alca'=>'alca','amoi'=>'amoi','aste'=>'aste','audi'=>'audi','avan'=>'avan','benq'=>'benq','bird'=>'bird','blac'=>'blac','blaz'=>'blaz','brew'=>'brew','brvw'=>'brvw','bumb'=>'bumb','ccwa'=>'ccwa','cell'=>'cell','cldc'=>'cldc','cmd-'=>'cmd-','dang'=>'dang','doco'=>'doco','eml2'=>'eml2','eric'=>'eric','fetc'=>'fetc','hipt'=>'hipt','http'=>'http','ibro'=>'ibro','idea'=>'idea','ikom'=>'ikom','inno'=>'inno','ipaq'=>'ipaq','jbro'=>'jbro','jemu'=>'jemu','java'=>'java','jigs'=>'jigs','kddi'=>'kddi','keji'=>'keji','kyoc'=>'kyoc','kyok'=>'kyok','leno'=>'leno','lg-c'=>'lg-c','lg-d'=>'lg-d','lg-g'=>'lg-g','lge-'=>'lge-','libw'=>'libw','m-cr'=>'m-cr','maui'=>'maui','maxo'=>'maxo','midp'=>'midp','mits'=>'mits','mmef'=>'mmef','mobi'=>'mobi','mot-'=>'mot-','moto'=>'moto','mwbp'=>'mwbp','mywa'=>'mywa','nec-'=>'nec-','newt'=>'newt','nok6'=>'nok6','noki'=>'noki','o2im'=>'o2im','opwv'=>'opwv','palm'=>'palm','pana'=>'pana','pant'=>'pant','pdxg'=>'pdxg','phil'=>'phil','play'=>'play','pluc'=>'pluc','port'=>'port','prox'=>'prox','qtek'=>'qtek','qwap'=>'qwap','rozo'=>'rozo','sage'=>'sage','sama'=>'sama','sams'=>'sams','sany'=>'sany','sch-'=>'sch-','sec-'=>'sec-','send'=>'send','seri'=>'seri','sgh-'=>'sgh-','shar'=>'shar','sie-'=>'sie-','siem'=>'siem','smal'=>'smal','smar'=>'smar','sony'=>'sony','sph-'=>'sph-','symb'=>'symb','t-mo'=>'t-mo','teli'=>'teli','tim-'=>'tim-','tosh'=>'tosh','treo'=>'treo','tsm-'=>'tsm-','upg1'=>'upg1','upsi'=>'upsi','vk-v'=>'vk-v','voda'=>'voda','vx52'=>'vx52','vx53'=>'vx53','vx60'=>'vx60','vx61'=>'vx61','vx70'=>'vx70','vx80'=>'vx80','vx81'=>'vx81','vx83'=>'vx83','vx85'=>'vx85','wap-'=>'wap-','wapa'=>'wapa','wapi'=>'wapi','wapp'=>'wapp','wapr'=>'wapr','webc'=>'webc','whit'=>'whit','winw'=>'winw','wmlb'=>'wmlb','xda-'=>'xda-',))); // check against a list of trimmed user agents to see if we find a match
      $mobile_browser = true; // set mobile browser to true
      $status = 'Mobile matched on in_array';
    break; // break even though it's the last statement in the switch so there's nothing to break away from but it seems better to include it than exclude it

    default;
      $mobile_browser = false; // set mobile browser to false
      $status = 'Desktop / full capability browser';
    break; // break even though it's the last statement in the switch so there's nothing to break away from but it seems better to include it than exclude it

  } // ends the switch 

  // tell adaptation services (transcoders and proxies) to not alter the content based on user agent as it's already being managed by this script, some of them suck though and will disregard this....
	// header('Cache-Control: no-transform'); // http://mobiforge.com/developing/story/setting-http-headers-advise-transcoding-proxies
	// header('Vary: User-Agent, Accept'); // http://mobiforge.com/developing/story/setting-http-headers-advise-transcoding-proxies

  // if redirect (either the value of the mobile or desktop redirect depending on the value of $mobile_browser) is true redirect else we return the status of $mobile_browser
  if($redirect = ($mobile_browser==true) ? $mobileredirect : $desktopredirect){
    header('Location: '.$redirect); // redirect to the right url for this device
    exit;
  }else{ 
		// a couple of folkas have asked about the status - that's there to help you debug and understand what the script is doing
		if($mobile_browser==''){
			return $mobile_browser; // will return either true or false 
		}else{
			return array($mobile_browser,$status); // is a mobile so we are returning an array ['0'] is true ['1'] is the $status value
		}
	}

} // ends function mobile_device_detect

?>

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hjgodeTier 3 Senior Technical Support Engineer

Commented:
Hello

I am not sure in understanding your question correctly.

a) you want to identify browser name (ie Opera, Android, Blackberry) and redirect them to special pages
b) you want to detect browser client screen size and redirect the client to matching web pages
c) you want to identify client OS to redirect based on that information

What is the exact intention? If it is only client screen size, then that should be easy to establish.

regards

josef
Commented:
Hi,

Most browsers will do an element of re-purposing of the website to the size of the display. In addition, flipping from portrait to landscape will change the display characteristics and the phone/browser will handle that element.

What you don't get on mobile browsers is the same level of HTML support, CSS, JavaScript, Java applets, ActiveX etc. that you do in a richer browser.

You can use simulators such as Windows Mobile, BlackBerry and I believe Android as well as emulating iPhone Browsers within Safari to help with your development.

Regards,


RobMobility.

Author

Commented:
To Josef:
If you take a look at the attached code for detectmobilebrowser , they ask eight questions, four having to do with what kind of phone is accessing the site (iPhone, Blackberry, etc), two having to do with whether the accessing computer is a mobile or a desktop and the other two having to do with what kind of browser the phone that is accessing the site is using (miniOpera, Windows7). I have sites, specific URLs, formatted for the different phones, but am not sure what to do with the browser question.

If I have the gist of what RobMobility is saying, I don't have to worry about the browsers, other than to specify that they are mobile, and that the browser itself will determine its display size and orientation based on the URL to which it is sent.. Which  leads to the next question, should I send the browser to a specific URL, and: to which site do I send a  user identified as a generic miniOpera user, or a generic Windows 7 user (no phone type identified) - the pad sized 1024x800, the smartphone 400x800, or the smaller 240x320?
OR
does the browser modify the desktop default version to the phone if I don't specify a specific URL?

Thank you both for your time,
Fran

Author

Commented:
Concise, well-written explanation.
Thanks
Fran

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