how to check if the request came from mobile or computer in php

Question

i need to check if the request came from a mobile phone device or desktop computer using php please help. thanks

Answer 1

Check the $_SERVER['HTTP_USER_AGENT'] for mobile user agents.

You should check out http://detectmobilebrowser.com/ for already existing scripts to detect for mobile browsers (it just uses the user agents).

Answer 2

I am using a function to identify mobile browsers in my projects, which can detect almost all major Mobile Operating systems and browsers.

    function ismobile() {
    $is_mobile = '0';

    if(preg_match('/(android|up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone)/i', strtolower($_SERVER['HTTP_USER_AGENT']))) {
        $is_mobile=1;
    }

    if((strpos(strtolower($_SERVER['HTTP_ACCEPT']),'application/vnd.wap.xhtml+xml')>0) or ((isset($_SERVER['HTTP_X_WAP_PROFILE']) or isset($_SERVER['HTTP_PROFILE'])))) {
        $is_mobile=1;
    }

    $mobile_ua = strtolower(substr($_SERVER['HTTP_USER_AGENT'],0,4));
    $mobile_agents = array('w3c ','acs-','alav','alca','amoi','andr','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)) {
        $is_mobile=1;
    }

    if (isset($_SERVER['ALL_HTTP'])) {
        if (strpos(strtolower($_SERVER['ALL_HTTP']),'OperaMini')>0) {
            $is_mobile=1;
        }
    }

    if (strpos(strtolower($_SERVER['HTTP_USER_AGENT']),'windows')>0) {
        $is_mobile=0;
    }

    return $is_mobile;
}