How to determine whether a user is accessing a php website from a mobile phone

How to determine whether a user is accessing a php website from a mobile phone_PHP Tutorial

WBOY

Release： 2016-07-13 10:25:32

Original

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With the popularity of mobile devices, the website will also receive more and more visits from mobile devices. Pages adapted to PCs are often not friendly to mobile phone users. Sometimes, we need to determine whether the user is accessing via a mobile phone. If so, jump to the designated mobile phone-friendly page. Here we will introduce how to determine whether the user is accessing via mobile phone.

The customized function is as follows:

Copy code The code is as follows:

$agent = check_wap();
if( $agent )
{
header('Location: http://www.nowamagic.net');
exit;
}

// check if wap
function check_wap(){
// First check whether it is a wap proxy, with high accuracy
if(stristr($_SERVER['HTTP_VIA'],"wap")){
return true;
}
// Check if the browser accepts WML.
elseif(strpos(strtoupper($_SERVER['HTTP_ACCEPT']),"VND.WAP.WML") > 0){
return true;
}
//Check USER_AGENT
elseif(preg_match('/(blackberry|configuration/cldc|hp |hp-|htc |htc_|htc-|iemobile|kindle|midp|mmp| motorola|mobile|nokia|opera mini|opera |Googlebot-Mobile|YahooSeeker/M1A1-R2D2|android|iphone|ipod|mobi|palm|palmos|pocket|portalmmm|ppc;|smartphone|sonyericsson|sqh|spv|symbian| treo|up.browser|up.link|vodafone|windows ce|xda |xda_)/i', $_SERVER['HTTP_USER_AGENT'])){
return true; > return false;

Copy code

The code is as follows:

function is_mobile_request()
{
$_SERVER['ALL_HTTP'] = isset($_SERVER['ALL_HTTP']) ? $_SERVER['ALL_HTTP'] : '';
$mobile_browser = '0';
if(preg_match('/(up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone|iphone|ipad|ipod|android|xoom)/i', strtolower($_SERVER['HTTP_USER_AGENT'])))
    $mobile_browser++;
if((isset($_SERVER['HTTP_ACCEPT'])) and (strpos(strtolower($_SERVER['HTTP_ACCEPT']),'application/vnd.wap.xhtml+xml') !== false))
    $mobile_browser++;
if(isset($_SERVER['HTTP_X_WAP_PROFILE']))
    $mobile_browser++;
if(isset($_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') !== false)
    $mobile_browser++;
// Pre-final check to reset everything if the user is on Windows
if(strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'windows') !== false)
    $mobile_browser=0;
// But WP7 is also Windows, with a slightly different characteristic
if(strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'windows phone') !== false)
    $mobile_browser++;
if($mobile_browser>0)
    return true;
else
    return false;