thinkphp how to determine the phone-side access or PC-side access?

1 functionIsMobile ()2 {3         //If you have http_x_wap_profile, it must be a mobile device .4     if(isset($_server[' Http_x_wap_profile ']))5     return true;6 7     //if the VIA message contains a WAP, it must be a mobile device, and some service providers block that information8     if(isset($_server[' Http_via ']))9     {Ten     //not found for flase, otherwise true One     return Stristr($_server[' Http_via '], "WAP")?true:false; A     } -     //brain Residue method, determine the mobile phone to send the client logo, compatibility needs to be improved -     if(isset($_server[' Http_user_agent '])) the     { -         $clientkeywords=Array(' Nokia ', ' Sony ', ' Ericsson ', ' mot ', ' Samsung ', ' HTC ', ' SGH ', ' lg ', ' sharp ', ' sie-', ' Philips ', ' Panasonic ', ' Alcatel ', ' Lenovo ', ' iphone ', ' ipod ', ' blackberry ', ' Meizu ', ' Android ', ' NetFront ', ' Symbian ', ' UCWeb ', ' windowsce ', ' palm ', ' Operamini ', ' operamobi ', ' Openwave ', ' nexusone ', ' cldc ', ' MIDP ', ' wap ', ' mobile '); -         //find keywords for your phone's browser from Http_user_agent -         if(Preg_match("/(" .implode(' | ',$clientkeywords) . ")/I",Strtolower($_server[' Http_user_agent ']))) +             return true; -     } +         //protocol law, because there may be inaccuracies, put to the final Judgment A     if(isset($_server[' Http_accept '])) at     { -     //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 -         if((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; in         } -     } to             return false;//then return false; +}

thinkphp how to determine the phone-side access or PC-side access?