Determinar si se accede desde un Móvil

dtermina_movil

function MOVIL($lista_user_agents, $user_agents_capturado){
$List_User_Agent = array( 
        'android' => 'android', 'AvantGo' => 'AvantGo', 'PLAYSTATION' => 'PLAYSTATION','Mobile','Mobile', 
        'BlackBerry' => 'BlackBerry', 'blazer' => 'blazer', 'hiptop' => 'hiptop', 'GoBrowser' => 'GoBrowser',
	'Cellphone' => 'Cellphone', 'EudoraWeb' => 'EudoraWeb', 'fennec' => 'fennec', 'IEMobile' => 'IEMobile',
	'iPhone' => 'iPhone', 'iPod'   => 'iPod', 'Googlebot-Mobile' => 'Googlebot-Mobile', 'Iris' => 'Iris',
	'iphone' => 'iphone', 'GoogleMobilizer' => 'Google Wireless Transcoder', 'KYOCERA' => 'KYOCERA',
	'LGE' => 'LGE', 'midp' => 'midp', 'Minimo' => 'Minimo', 'NetFront' => 'NetFront',  'Dorothy' => 'Dorothy',    
	'Nintendo' => 'Nintendo', 'Nitro' => 'Nitro', 'Nokia' => 'Nokia', 'Motorola' => 'mot-', 'TeaShark' => 'TeaShark',
        'OperaMini' => 'Opera Mini', 'Palm' => 'Palm', 'PDA' => 'PDA', 'Blazer'  => 'Blazer', 'iPad' => 'iPad', 
        'BOLT' => 'BOLT', 'Fennec'  => 'Fennec', 'Opera Mobi'  =>  'Opera Mobi', 'Series60' => 'Series60',
        'PIE4' => 'MSIE 4.01; Windows CE; PPC; 240x320', 'PIE4_Smartphone' => 'MSIE 4.01; Windows CE; Smartphone;',
        'PIE6' => 'MSIE 6.0; Windows CE;', 'Plucker' => 'Plucker', 'PPC' => 'PPC', 'MIB' => 'MIB',
        'PlayStation' => 'PlayStation', 'proxinet' => 'proxinet', 'SHARP-TQ-GX10' => 'SHARP-TQ-GX10', 'SHG-i900' => 'SHG-i900', 
        'WCE' => 'WCE','sonyericssonp800'  =>'sonyericssonp800', 'Smartphone' => 'Smartphone', 'SEMC' => 'SEMC',
        'SonyEricsson' => 'SonyEricsson', 'symbian' => 'symbian','vodafone' => 'vodafone', 'webOS' => 'webOS', 
        'WindowsMobile' => 'Windows CE',  'WinWAP' => 'WinWAP', 'WX310K' => 'WX310K','S60' => 'S60' );
  foreach($lista_user_agents as $navegador => $user_agent_rev) {
    if(stristr($user_agents_capturado, strtolower($user_agent_rev))!==false){
     header("location:movil.xombra.com"); 
     die(); 
    }
  }
   return 'NO';
}