While ago friend of me asked for a script to detect if site is browsed with mobile device.
There are lot of these around on the net and here is my contribution to that list.
Hopefully someone else find this usefull also:
public function is_mobile($include_iphone_and_ipod=true)
{
$mobile_browser = 0;
$user_agent = $this->get_value('_SERVER', 'HTTP_USER_AGENT');
if (preg_match('/(up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone)/i', strtolower($user_agent))) {
$mobile_browser++;
}
if (! $include_iphone_and_ipod) {
if (preg_match('/(iphone|ipod)/i', strtolower($user_agent))) {
$mobile_browser--;
}
}
if ( (strpos(strtolower($this->get_value('_SERVER', 'HTTP_ACCEPT')),'application/vnd.wap.xhtml+xml')>0)
|| (( $this->has_value('_SERVER', 'HTTP_X_WAP_PROFILE')
|| $this->has_value('_SERVER', 'HTTP_PROFILE'))))
{
$mobile_browser++;
}
$mobile_ua = strtolower(substr($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 ( $this->has_value('_SERVER', 'ALL_HTTP')
&& strpos(strtolower($this->get_value('_SERVER', 'ALL_HTTP')), 'OperaMini') > 0)
{
$mobile_browser++;
}
if (strpos(strtolower($user_agent), 'windows') > 0) {
$mobile_browser = 0;
}
if ($mobile_browser > 0) {
return true;
}
return false;
}