Dana Ross

This plugin displays a message at the top of the screen for visitors running outdated versions of the most popular browsers:
<ul>
<li>Internet Explorer 6 SP2 or less</li>
<li>FireFox 2 or less</li>
<li>Safari 2 or less</li>
</ul>
It is designed to be unobtrusive. The message disappears after a few seconds, and it only displays the first time the visitor comes to your WordPress blog/site.
The warning reads: It appears that you are using an outdated version of your browser. Please upgrade your browser for better sercurity and an improved experience.
The message also includes a link where the newest version of the browser can be downloaded.

Dave’s Outdated Browser Warning

Mindshare Labs, Inc.

MartyThornley

Version 3 adds support for is_tablet(), is_desktop(), and is_browser() as well as numerous bug fixes and code improvements. As of version 3.1.2 automatic updates of browscap.ini are disabeld until we can deal with memory usage issues.
PHP Browser Detection is a WordPress plugin used to detect a user’s browser. It can be used to send conditional CSS files for Internet Explorer, display different content or custom messages anywhere on the page, or to swap out Flash for an image for iPhones.
Template Tags:
Test for specific browsers:
$version is optional. Include a major version number, a single integer – 3,4,5, etc… Or leave it empty to test for any version.
<pre><code><?php if(is_firefox($version)) { /* your code here */ }; ?>

<?php if(is_safari($version)) { /* your code here */ }; ?>

<?php if(is_chrome($version)) { /* your code here */ }; ?>

<?php if(is_opera($version)) { /* your code here */ }; ?>

<?php if(is_ie($version)) { /* your code here */ }; ?>

<?php if(is_browser($name, $version)) { /* your code here */ }; ?>
</code></pre>
Check for mobile, tablet, iPhone, iPad, iPod, etc…
<pre><code><?php if(is_desktop()) { /* your code here */ }; ?>

<?php if(is_tablet()) { /* your code here */ }; ?>

<?php if(is_iphone($version)) { /* your code here */ }; ?>

<?php if(is_ipad($version)) { /* your code here */ }; ?>

<?php if(is_ipod($version)) { /* your code here */ }; ?>

<?php if(is_mobile()) { /* your code here */ }; ?>
</code></pre>
Check for greater than / less than a specific version…
Less than or equal to Firefox 19: 
 < ?php if(is_firefox() && get_browser_version() 
Less than or equal to IE 10: 
 < ?php if(is_ie() && get_browser_version() 
Greater than or equal to Safari 4: 
 = 4) { /* your code here */ }; ?>
these are just a few examples, but this syntax will work for any browser or version.
Check specific versions…
Is the browser IE6?
 
Is the browser IE10?
 
Or you can get all the info and do what you want with it:
Get just the name…
<pre><code><?php $browser_name = get_browser_name(); ?>
</code></pre>
Get the full version number – 3.2, 5.0, etc…
<pre><code><?php $browser_version = get_browser_version(); ?>
</code></pre>
Or get it all in array…
<pre><code><?php $browser_info = php_browser_info(); ?>
</code></pre>
Shortcodes:
Test for specific browsers:
<pre><code>[is_browser name="chrome" version="45"]
You are using Chrome 45 or above.
[/is_browser]
</code></pre>
Output all browser info:
<pre><code>[browser_info]
</code></pre>

PHP Browser Detection

This worked great for us. It deservers a better rating. Thank you!



Very nice

PHP Browser Detection is a WordPress plugin used to detect a user's browser. Please report any bugs on the support forums.

Dave’s Outdated Browser Warning vs PHP Browser Detection