PHP How to determine the source of mobile devices _php Tutorial

How PHP determines the source of mobile devices

Now that the mobile device is hot, we may often need to match the page of the mobile device when we do the Web front-end development. Of course we can use the responsive page design to handle the front-end matching problem, but the responsive page just doesn't show some code, but it still loads into the user's mobile device. In order to better take care of the user's mobile browsing experience, reduce unnecessary loading. We can then use PHP to reduce the user's code load, improve the user experience when browsing the page. Because of the variety of mobile devices, and the wide range of browsers, it is only through user-agent to judge that the problem is not completely solved.

function IsMobile ()

{

If you have http_x_wap_profile, it must be a mobile device.

if (Isset ($_server[' http_x_wap_profile '))

{

return true;

}

If the VIA message contains a WAP, it must be a mobile device, and some service providers block that information

if (Isset ($_server[' Http_via '))

{

Not found for flase, otherwise true

Return Stristr ($_server[' Http_via '), "WAP")? True:false;

}

Determine the client flag sent by the phone, compatibility needs to be improved

if (Isset ($_server[' http_user_agent '))

{

$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

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

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;

}

}

return false;

}

?>

At present, this method can be used for most mobile device judgment, can also be used to add some of the UA's judgment parameters.

http://www.bkjia.com/PHPjc/834951.html www.bkjia.com true http://www.bkjia.com/PHPjc/834951.html techarticle PHP's approach to determining the source of mobile devices now that the mobile device is hot, it is possible that we will often need to match the page of a mobile device when we do web front-end development. Of course we can ...

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