php - 如何判斷存取來自pc端還是行動端?

Question

主要是判斷來自pc端，因為有些操作是必須在電腦上操作的，
來自行動端的，隱藏部分功能。

Answer 1

助手類別如下：
原理就是驗證header頭

<?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Http頭部來判斷：

• Mobile_Detect

Answer 3

雷雷

Answer 4

貼一下THINKcmf裡面的程式碼

/**
 * 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;
}

當然，如果你還需要判斷安卓或ios的話，有一個簡單的方法，行動端自訂HTTP_USER_AGENT的值，然後從服務端取得$_SERVER['HTTP_USER_AGENT']，例如，增加一個my_webapp,判斷這個字元是否存在

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

Answer 5

這個問題我在segment fault回答過，當時題主表示有效：/q/101...