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PHP: If internet explorer 6, 7, 8 , or 9

Asked 2011-03-14T17:47:07.017
87

I want to do a conditional in PHP for the different versions of Internet Explorer along the lines of:

if($browser == ie6){ //do this} elseif($browser == ie7) { //dothis } elseif...

I have seen many variations on similar code, but looking for something super simple that is very easy to code to do some simple if and else and do different things.

Thanks

EDIT: I need this to show some different messages to users so CSS conditionals etc are no good.

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2 Answers

130

This is what I ended up using a variation of, which checks for IE8 and below:

if (preg_match('/MSIE\s(?P<v>\d+)/i', @$_SERVER['HTTP_USER_AGENT'], $B) && $B['v'] <= 8) {
    // Browsers IE 8 and below
} else {
    // All other browsers
}
answered 2011-03-14T17:59:00.997
2

'HTTP_USER_AGENT' Contents of the User-Agent: header from the current request, if there is one. This is a string denoting the user agent being which is accessing the page. A typical example is: Mozilla/4.5 [en] (X11; U; Linux 2.2.9 i586). Among other things, you can use this value with get_browser() to tailor your page's output to the capabilities of the user agent.

So I assume you'll be able to get the browser name/id from the $_SERVER["HTTP_USER_AGENT"] variable.

answered 2011-03-14T17:51:23.673

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