Mobile Content Detection

<?php
/*
=====================================================
Mobile version detection
-----------------------------------------------------
compliments of http://www.buchfelder.biz/
 =====================================================
*/

$mobile = "http://www.stepforth.mobi";
$text = $_SERVER['HTTP_USER_AGENT'];
$var[0] = 'Mozilla/4.';
 $var[1] = 'Mozilla/3.0';
$var[2] = 'AvantGo';
$var[3] = 'ProxiNet';
$var[4] = 'Danger hiptop 1.0';
$var[5] = 'DoCoMo/';
$var[6] = 'Google CHTML Proxy/';
$var[7] = 'UP.Browser/';
 $var[8] = 'SEMC-Browser/';
$var[9] = 'J-PHONE/';
$var[10] = 'PDXGW/';
$var[11] = 'ASTEL/';
$var[12] = 'Mozilla/1.22';
$var[13] = 'Handspring';
$var[14] = 'Windows CE';
 $var[15] = 'PPC';
$var[16] = 'Mozilla/2.0';
$var[17] = 'Blazer/';
$var[18] = 'Palm';
$var[19] = 'WebPro/';
$var[20] = 'EPOC32-WTL/';
$var[21] = 'Tungsten';
 $var[22] = 'Netfront/';
$var[23] = 'Mobile Content Viewer/';
$var[24] = 'PDA';
$var[25] = 'MMP/2.0';
$var[26] = 'Embedix/';
$var[27] = 'Qtopia/';
$var[28] = 'Xiino/';
 $var[29] = 'BlackBerry';
$var[30] = 'Gecko/20031007';
$var[31] = 'MOT-';
$var[32] = 'UP.Link/';
$var[33] = 'Smartphone';
$var[34] = 'portalmmm/';
$var[35] = 'Nokia';
 $var[36] = 'Symbian';
$var[37] = 'AppleWebKit/413';
$var[38] = 'UPG1 UP/';
$var[39] = 'RegKing';
$var[40] = 'STNC-WTL/';
$var[41] = 'J2ME';
$var[42] = 'Opera Mini/';
 $var[43] = 'SEC-';
$var[44] = 'ReqwirelessWeb/';
$var[45] = 'AU-MIC/';
$var[46] = 'Sharp';
$var[47] = 'SIE-';
$var[48] = 'SonyEricsson';
$var[49] = 'Elaine/';
 $var[50] = 'SAMSUNG-';
$var[51] = 'Panasonic';
$var[52] = 'Siemens';
$var[53] = 'Sony';
$var[54] = 'Verizon';
$var[55] = 'Cingular';
$var[56] = 'Sprint';
 $var[57] = 'AT&T;';
$var[58] = 'Nextel';
$var[59] = 'Pocket PC';
$var[60] = 'T-Mobile';    
$var[61] = 'Orange';
$var[62] = 'Casio';
$var[63] = 'HTC';
 $var[64] = 'Motorola';
$var[65] = 'Samsung';
$var[66] = 'NEC';

$result = count($var);

for ($i=0;$i<$result;$i++)
{    
    $ausg = stristr($text, $var[$i]);    
    if(strlen($ausg)>0)
     {
        header("location: $mobile");
        exit;
    }
    
}
?>