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){
  echo 'hola usas un navegador de un telefono movil';
}else{
    echo 'hola usas un navegador normal';
}
?>