浏览网站时，有的时候，会告诉你，无权进入一些页面。例如：一些技术性的论坛，刚进去的时候，只能看看贴子，并且只能在一定的区域看，不能 发贴等。做电子商务时，电子商务的后台是一个比较大的系统，不同的人进去会看到不同的页面，如果能看到同一个页面，也许允许的操作也不一样，这些机制是怎 么实现的呢。下面就个人愚见分析几种情况 一，简单session控制 实现原理和方法： 用户登录后台，输入用户名和密码，对用户的用户名和密码进行验证，验证通过后，可以把用户的一些基本信息放到session里面当用户访问后台的其他页面时，去判断一下session是否存在，并且没有过期。不过，后台管理员权限一样，没有区分 1，后台页面共用的基本类，我们可以在基本类的里加以判断，或者在基本类外面在extends一层，加以判断，去check一下session。 2，直接重写一个check_login.php每个后台页面都包涵这个页面，通过这个页面加以判断，check一下session。 二，菜单控制…
April 29, 2015
php判断手机移动设备 Mobile-Detect
Mobile Detect is a lightweight PHP class for detecting mobile devices (including tablets). It uses the User-Agent string combined with specific HTTP headers to detect the mobile environment.
You may consider this script as being part of the RESS (Responsive Web Design with Server-Side Component) movement. You can find out more on the topic by reading these articles: Improve Mobile Support With Server-Side-Enhanced Responsive Design and RESS: Responsive Design + Server Side Components.
You can also benefit from Mobile Detect by using any of the 3rd party plugins available for: WordPress, Drupal, Joomla, Magento, etc.
Current development status: 
Packagist status: 
Here are some code examples:
// Include and instantiate the class.
require_once 'Mobile_Detect.php';
$detect = new Mobile_Detect;
// Any mobile device (phones or tablets).
if ( $detect->isMobile() ) {
}
// Any tablet device.
if( $detect->isTablet() ){
}
// Exclude tablets.
if( $detect->isMobile() && !$detect->isTablet() ){
}
// Check for a specific platform with the help of the magic methods:
if( $detect->isiOS() ){
}
if( $detect->isAndroidOS() ){
}
// Alternative method is() for checking specific properties.
// WARNING: this method is in BETA, some keyword properties will change in the future.
$detect->is('Chrome')
$detect->is('iOS')
$detect->is('UC Browser')
// [...]
// Batch mode using setUserAgent():
$userAgents = array(
'Mozilla/5.0 (Linux; Android 4.0.4; Desire HD Build/IMM76D) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.166 Mobile Safari/535.19',
'BlackBerry7100i/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/103',
// [...]
);
foreach($userAgents as $userAgent){
$detect->setUserAgent($userAgent);
$isMobile = $detect->isMobile();
$isTablet = $detect->isTablet();
// Use the force however you want.
}
// Get the version() of components.
// WARNING: this method is in BETA, some keyword properties will change in the future.
$detect->version('iPad'); // 4.3 (float)
$detect->version('iPhone') // 3.1 (float)
$detect->version('Android'); // 2.1 (float)
$detect->version('Opera Mini'); // 5.0 (float)
// [...]
项目地址：https://github.com/serbanghita/Mobile-Detect
下载附件：Mobile-Detect-2.8.13
Related Posts
About Author
