php - How to determine whether the access comes from PC or mobile?

Question

Mainly the judgment comes from the PC side, because some operations must be performed on the computer.
It comes from the mobile side, hiding some functions.

Answer 1

The assistant class is as follows:
The principle is to verify the header

<?php
/**
 * Created by PhpStorm.
 * User: QQ: 1716771371
 * oschina:http://git.oschina.net/zhaojunlike
 * github: http://github.com/zhaojunlike
 * Date: 2016/8/14
 * Time: 8:55
 */

namespace Common\Helper;


class MobileHelper
{


    static private $instance;


    public static function isMobile()
    {
        $_SERVER['ALL_HTTP'] = isset($_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;
    }
}

Answer 2

Mobile_Detect是轻量级php库通过User-agent和特定的人HttpJudge by the head:

• Mobile_Detect

Answer 3

function is_mobile() {
    if(empty($_SERVER['HTTP_USER_AGENT']))return false;
    $user_agent = strtolower($_SERVER['HTTP_USER_AGENT']);
    $mobile_agents = Array("240x320","acer","acoon","acs-","abacho","ahong","airness","alcatel","amoi","android","anywhereyougo.com","applewebkit/525","applewebkit/532","asus","audio","au-mic","avantogo","becker","benq","bilbo","bird","blackberry","blazer","bleu","cdm-","compal","coolpad","danger","dbtel","dopod","elaine","eric","etouch","fly ","fly_","fly-","go.web","goodaccess","gradiente","grundig","haier","hedy","hitachi","htc","huawei","hutchison","inno","ipad","ipaq","ipod","jbrowser","kddi","kgt","kwc","lenovo","lg ","lg2","lg3","lg4","lg5","lg7","lg8","lg9","lg-","lge-","lge9","longcos","maemo","mercator","meridian","micromax","midp","mini","mitsu","mmm","mmp","mobi","mot-","moto","nec-","netfront","newgen","nexian","nf-browser","nintendo","nitro","nokia","nook","novarra","obigo","palm","panasonic","pantech","philips","phone","pg-","playstation","pocket","pt-","qc-","qtek","rover","sagem","sama","samu","sanyo","samsung","sch-","scooter","sec-","sendo","sgh-","sharp","siemens","sie-","softbank","sony","spice","sprint","spv","symbian","tablet","talkabout","tcl-","teleca","telit","tianyu","tim-","toshiba","tsm","up.browser","utec","utstar","verykool","virgin","vk-","voda","voxtel","vx","wap","wellco","wig browser","wii","windows ce","wireless","xda","xde","zte");
    $is_mobile = false;
    foreach ($mobile_agents as $device) {
        if (stristr($user_agent, $device)) {
            $is_mobile = true;
            break;
        }
    }
    return $is_mobile;
}

Answer 4

Post the code in THINKcmf

/**
 * 判断是否为手机访问
 * @return  boolean
 */
function sp_is_mobile() {
    static $sp_is_mobile;

    if ( isset($sp_is_mobile) )
        return $sp_is_mobile;

    if ( empty($_SERVER['HTTP_USER_AGENT']) ) {
        $sp_is_mobile = false;
    } elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Mobile') !== false // many mobile devices (all iPhone, iPad, etc.)
            || strpos($_SERVER['HTTP_USER_AGENT'], 'Android') !== false
            || strpos($_SERVER['HTTP_USER_AGENT'], 'Silk/') !== false
            || strpos($_SERVER['HTTP_USER_AGENT'], 'Kindle') !== false
            || strpos($_SERVER['HTTP_USER_AGENT'], 'BlackBerry') !== false
            || strpos($_SERVER['HTTP_USER_AGENT'], 'Opera Mini') !== false
            || strpos($_SERVER['HTTP_USER_AGENT'], 'Opera Mobi') !== false ) {
        $sp_is_mobile = true;
    } else {
        $sp_is_mobile = false;
    }

    return $sp_is_mobile;
}

/**
 * 判断是否为微信访问
 * @return boolean
 */
function sp_is_weixin(){
    if (strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== false) {
        return true;
    }
    return false;
}

Of course, if you still need to judge Android or iOS, there is a simple method. Customize the value of HTTP_USER_AGENT on the mobile side, and then get $_SERVER['HTTP_USER_AGENT'] from the server. For example, add a my_webapp to determine whether this character is Existence

$user_agent = $_SERVER['HTTP_USER_AGENT'];
            if (stripos($user_agent, 'my_webapp') !== false) {
                $this->assign("is_webapp", true);
        }

Answer 5

I answered this question in segment fault, and the questioner said it was valid at that time: /q/101...