How to collect OS type from user agent?

[John Wright]

As a total newbie I find myself in a pickle.
On my website I had a php script that emailed me the details from a form and also included the USER AGENT so I could tell whether they were on Mac or PC. Thats what I need to know in addition to the regular form fields.

I cannot work out how to collect that information and send it as part of the email I receive from the form.

I am sure it is simple but so am I !

Can anyone put me out of my misery.

PS even if I search the internet and find $_SERVER["USER_AGENT"]I do not know how to put it in the PHP script nor how to send the results to my email.

Thanks in advance for any help.

<?php
    /* 
    =============================================
    Sendmail.php - send an email from a web form. Make sure this file is called sendmail.php
    when you upload it, otherwise the example form won't find the script and will error.
 
    NOTE: This script is heavily commented. Text after double slashes // is ignored by PHP
    =============================================
    */
 
    // You only need to modify the following three lines of code to customise your form to mail script.
    $email_to = "[e-mail]";             // Specify the email address you want to send the mail to.
    $email_subject = "1-Enquiry from web form";     // Set the subject of your email.
    // Specify a page on your website to display a thankyou message when the mail is sent
    $thankyou_url = "http://www.my-site.co.uk/confirm.htm";
 
    // Get the details the user entered into the form
    $name = $_POST["name"];
    $email_from = $_POST["email"];
    $message = $_POST["message"];
 
 
 
    // Validate the email address entered by the user
    if(!filter_var($email_from, FILTER_VALIDATE_EMAIL)) {
        // Invalid email address
        die("The email address entered is invalid.");
    }
 
    // The code below creates the email headers, so the email appears to be from the email address filled out in the previous form.
    // NOTE: The \r\n is the code to use a new line.
    $headers  = "From: $email_from . \r\n";
    $headers .= "Reply-To: $email_from . \r\n";    // (You can change the reply email address here if you want to.)
 
// Now we can construct the email body which will contain the name and message entered by the user
 
foreach($_POST as $key => $value) { 
 if ($value) { 
 $message .= $key . " = " . $value . "\r"; 
 } 
 } 
 
 
    // This is the important ini_set command which sets the sendmail_from address, without this the email won't send.
    ini_set("sendmail_from", $email_from);
 
    // Now we can send the mail we've constructed using the mail() function.
    // NOTE: You must use the "-f" parameter on Fasthosts' system, without this the email won't send.
    $sent = mail($email_to, $email_subject, $message, $headers, "-f" . $email_from);
 
    // If the mail() function above successfully sent the mail, $sent will be true.
    if($sent) {
        header("Location: " . $thankyou_url);     // Redirect customer to thankyou page
    } else {
        // The mail didn't send, display an error.
        echo "There has been an error sending your message. Please try later.";
    }
 
?>
 

[JKing]

$_SERVER["USER_AGENT"] is a variable belonging to the server collection.

To add it to the email you will need to add it to the $message string.

$message .= "User Agent: " . $_SERVER['USER_AGENT'];
 

This should be placed at line 42.

[John Wright]

Thanks JKing.

I have tried it and the email I get says User Agent:

But noting else.

Have I missed something here?

[JKing]

No, sorry still having my coffee not quite awake yet.

Should have been:

$message .= "User Agent: " . $_SERVER['HTTP_USER_AGENT'];
 

[John Wright]

Tried it and it works beautifully !!

Many thanks and enjoy your coffee!!!

[JKing]

Thanks haha! Glad I could help, have a great day.