Worcester Web Site Development Blog

Redirect mobile users to a mobile friendly page with php

June 25, 2009

After allot of trial and error I ended up coming up with some code that will redirect users to a mobile friendly page, this method won’t really be useful in about 5 years because modern browsers like safari allow full page viewing but this will get you by until then. Remember this code will have to change constantly if you want to stay up to date with the latest hand held devices and mime types.

To get started all you have to do is place the following code in the stop of your php page. If your loading an application you can post this below your application just don’t output any data before the code is executed. To get started making mobile friendly pages you can purchase your domain names and hosting by clicking here.


$mobile_browser = '0';if(preg_match('/(up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone)/i',
strtolower($_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;
}

//change this to your mobile friendly page
if($mobile_browser>0){
header( “Location: http://www.yourwebsite.com/mobile/” ) ;
} else {
// do something else
}

$ua = $HTTP_USER_AGENT;
if (stristr($ua, “Windows CE”) or stristr($ua, “AvantGo”) or stristr($ua,
“Mazingo”) or stristr($ua, “Mobile”) or stristr($ua, “T68″) or stristr($ua,
“Syncalot”) or stristr($ua, “Blazer”) or stristr($ua, “NetFront”))
{
$DEVICE_TYPE=”MOBILE”;
}

if (isset($DEVICE_TYPE) and $DEVICE_TYPE==”MOBILE”)
{
//change this to your mobile friendly page
header( “Location: http://www.yourwebsite.com/mobile/” ) ;
exit;
}

?>

Posted by Anthony under PHP | Comments (2)