help pls: redirect depending on DEVICE (not just browser) - HTML Forums

c-a-a · 08-29-2009, 05:27 PM

im stumped on this...

my goal is to redirect visitors to my .mobi site if their on a mobile device and if on a computer to do nothing at all.

for the past 2 yrs ive had mobile devices redirected to mysite.com/mobile. now as im upgrading to a .mobi i want to be more specific, now all i need is to learn how to get it done! (i prefer php over javascript for obvious reasons)

can someone help me complete the following please??:

PHP Code:


			
<?php

 

$mobile_browser = '0';

 

if(preg_match('/(up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone)/i', strtolower($_SERVER['HTTP_USER_AGENT']))) {

    $mobile_browser++;

}

 

if((strpos(strtolower($_SERVER['HTTP_ACCEPT']),'application/vnd.wap.xhtml+xml')>0) or ((isset($_SERVER['HTTP_X_WAP_PROFILE']) or isset($_SERVER['HTTP_PROFILE'])))) {

    $mobile_browser++;

}    

 

$mobile_ua = strtolower(substr($_SERVER['HTTP_USER_AGENT'],0,4));

$mobile_agents = array(

    'w3c ','acs-','alav','alca','amoi','audi','avan','benq','bird','blac',

    'blaz','brew','cell','cldc','cmd-','dang','doco','eric','hipt','inno',

    'ipaq','java','jigs','kddi','keji','leno','lg-c','lg-d','lg-g','lge-',

    'maui','maxo','midp','mits','mmef','mobi','mot-','moto','mwbp','nec-',

    'newt','noki','oper','palm','pana','pant','phil','play','port','prox',

    'qwap','sage','sams','sany','sch-','sec-','send','seri','sgh-','shar',

    'sie-','siem','smal','smar','sony','sph-','symb','t-mo','teli','tim-',

    'tosh','tsm-','upg1','upsi','vk-v','voda','wap-','wapa','wapi','wapp',

    'wapr','webc','winw','winw','xda','xda-');

 

if(in_array($mobile_ua,$mobile_agents)) {

    $mobile_browser++;

}

 

if (strpos(strtolower($_SERVER['ALL_HTTP']),'OperaMini')>0) {

    $mobile_browser++;

}

 

if (strpos(strtolower($_SERVER['HTTP_USER_AGENT']),'windows')>0) {

    $mobile_browser=0;

}

 

if($mobile_browser>0) {

   // do something

}

else {

   // do something else

}   

 

?>

thanks in advance,
-c. a. a.

erisco · 08-29-2009, 09:35 PM

So instead of redirecting to mysite.com/mobile, redirect to mysite.mobi/. Right?

c-a-a · 08-30-2009, 04:36 PM

Quote:

Originally Posted by erisco

So instead of redirecting to mysite.com/mobile, redirect to mysite.mobi/. Right?

thats correct

erisco · 08-30-2009, 07:04 PM

Okay, so why can you not apply the mechanism used previously in this new situation?

Redirects can by done by sending the browser a location header with the header() function.

c-a-a · 08-30-2009, 10:18 PM

Quote:

Originally Posted by erisco

Okay, so why can you not apply the mechanism used previously in this new situation?

Redirects can by done by sending the browser a location header with the header() function.

im sorry, i explained this wrong... for the past 2 years ive had a link immediately following my <body> tag - similar to 'if your on a mobile device please click here'

i have yet to successfully redirect ONLY mobile devices. for example, when i run sample redirection scripts and test them from:
1) blackberry curve on its default browser = i dont redirect, the script thinks im using an old version of netscape
2) the same blackberry using opera mini = redirects properly
3) an iphone = redirects properly

thanks for your help - and sorry for not accurately explaining my scenario the first time.

erisco · 08-31-2009, 10:59 AM

I personally am not aware of the issues with detecting handheld devices based on their UA string. However, what I do not understand, is why you are not just providing an alternative style sheet for handheld users. Why is there the need to redirect at all?