CODEWITHSUNDEEP
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Koga
Koga

Reputation: 135

PHP Limit users browser type

I need to limit what browsers can user use to view on my page. I want to allow only Chrome, FireFox 4+ and all WebKit based browsers. If user use i.e. explorer, PHP will produce output i.e.: "You have not supported browser, use Chrome, Firefox 4+ or WebKit based browser!" How can I do it?

Upvotes: 0

Views: 1437

Answers (4)

anon
anon

Reputation:

$_SERVER['HTTP_USER_AGENT'] will give you browser details, and from that you can work your way up to verification good luck

This may be so lame, since I am PHP newbie but, I would check if someone is using Mozilla (firefox) by doing this: 

        $browser  = $_SERVER['HTTP_USER_AGENT'];

        if (strpos($browser,'Mozilla') !== false) {
            echo 'You are using Mozilla';
        } else {
              echo 'You are not using Mozilla';
            }

Upvotes: 1

ComFreek
ComFreek

Reputation: 29434

Use $_SERVER\['HTTP_USER_AGENT'\] or get_browser().

But you should really ask yourself why this is necessary. If your site doesn't work with all feature, than it's ok to show a message saying:

Please upgrade your browser in order to use all features.

You can also detect whether specific JS functions/objects exists so you won't run into Undefined identifier errors (credits to epascarello).

Upvotes: 1

Mihai Stancu
Mihai Stancu

Reputation: 16117

PHP sniffer is a library that handles extracting information about the user and user-agent (browser).

It uses the same data that get_browser() or $_SEREVER['HTTP_USER_AGENT'] can give you but it formats it into a nicely structured object that you can use in your code.

Upvotes: 1

Viacheslav Kondratiuk
Viacheslav Kondratiuk

Reputation: 8889

You can check server variable:

<?php 
 echo $_SERVER['HTTP_USER_AGENT'];
?>

Upvotes: 0

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