Php: determine whether a user accesses the code through a mobile phone _ php skills

In the previous case, we used to determine whether a user accesses a mobile phone or a computer, and then display the corresponding page to the user. Initially, js was used, but the accuracy was not high. finally, PHP was used for this purpose. Basically, the accuracy can be determined by tests. With the popularization of mobile devices, more and more mobile devices will access websites. Pages adapted to PCs are often unfriendly to mobile phone users. in some cases, we need to determine whether users are accessed by mobile phones. if they are mobile phones, they will jump to the specified mobile phone friendly page. Here we will introduce how to determine whether a user can access the website through a mobile phone.

The custom functions are as follows:

$ Agent = check_wap (); if ($ agent) {header ('Location: http://www.jb51.net '); exit;} // check if wapfunction check_wap () {// check whether it is a wap proxy first, and the accuracy is high if (stristr ($ _ SERVER ['http _ VIA '], "wap") {return true ;} // check whether 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-| 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 _)/I ', $ _ SERVER ['http _ USER_AGENT']) {return true;} else {return false ;}}

Another function is used to determine whether a mobile terminal is a mobile phone from the PHP framework:

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; }

I would like to share with you the personal usage

Function isPhone () {// if there is HTTP_X_WAP_PROFILE, it must be a mobile device if (isset ($ _ SERVER ['http _ X_WAP_PROFILE ']) {return true ;} // if the via information contains wap, it must be a mobile device. some service providers will block this information if (isset ($ _ SERVER ['http _ VE']) {// cannot be found as flase; otherwise, it is true if (stristr ($ _ SERVER ['http _ vevia '], "wap") {return true ;}} // identify the client flag sent by the mobile phone. the compatibility needs to be improved if (isset ($ _ SERVER ['http _ USER_AGENT ']) {$ clientkeywords = array ('Nokia ', 'Sony', 'ericsson ', 'MOT', 'samsu Ng ', 'HTC', 'sgh', 'LG ', 'sharp', 'sie-', 'Philips', 'panasonic ', 'Alcatel', 'Lenovo ', iphone, ipod, blackberry, meizu, android, netfront, symbian, ucweb, windowsce, and palm ', 'operamini ', 'operamobi', 'openwave', 'nexusone', 'cldc ', 'midp', 'wap ', 'mobile', 'phone ',); // search for the keyword if (preg_match ("/(". implode ('|', $ clientkeywords ). ")/I", strtolower ($ _ SERVER ['Http _ USER_AGENT ']) {return true ;}// resolution method, which may be inaccurate, put it at the end to determine if (isset ($ _ SERVER ['http _ ACCEPT ']) {// if only wml is supported and html is not supported, it must be a mobile device // if wml and html are supported, but wml is a mobile device before html (strpos ($ _ SERVER ['http _ ACCEPT '], 'vnd. wap. wml ')! = False) & (strpos ($ _ SERVER ['http _ ACCEPT '], 'text/html ') === false | (strpos ($ _ SERVER ['http _ ACCEPT '], 'vnd. wap. wml ') <strpos ($ _ SERVER ['http _ ACCEPT'], 'text/html ') {return true ;}} return false ;}

The above is all the content of this article. I hope you will like it.