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Editorial Team
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Asked: 2026-05-16T12:15:35+00:00

I have a simple PHP script that sends a message to a specified email

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I have a simple PHP script that sends a message to a specified email address with content from a HTML form using the mail() function (which I am aware is prone to spam).

I was wondering if it’s possible to obtain additional information about the user’s settings and input them in the sent mail.

Additional information could contain:

  • Browser type and version Whether
  • Javascript is enabled or disabled
  • Operating system Resolution

If any of those are possible, that would be awesome.

Thanks,
Amit

EDIT: Thanks to @Stephen, I was able to use the $_SERVER[‘HTTP_USER_AGENT’] to get more info regarding the browser. However, when using the get_browser, it did not work. This is my code:

$browser = get_browser(null, true);

$message = 'From: ' . "\n\n" . 
'Name: ' . $_REQUEST['name'] . "\n\n" . 
'E-mail: ' . $_REQUEST['email'] . "\n\n" . 
'Comments: ' . $_REQUEST['comments'] . "\n\n" . 
'Details: ' . $_SERVER['HTTP_USER_AGENT'] . "\n\n" . 
'Further: ' . echo ($browser);

Anyone knows the reason why?

Thanks!

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1 Answer

  1. Editorial Team

    Many details can be found by parsing the $_SERVER['HTTP_USER_AGENT'] variable. Example for my current computer is:

    echo $_SERVER['HTTP_USER_AGENT']
// Output: "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8"

    Remember that the contents of this are not a definite sign – browsers can and do (sometimes deliberately, sometimes accidentally) lie about their origins.

    Note there are some functions like get_browser which wrap the HTTP_USER_AGENT to return some useful information too.

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