Turkish characters to contact form - php

Question

How to add the Turkish characters to this form:
in the $mailed = mail($to, '=?utf-8?B?'.base64_encode($message).'?=', $message, $headers);
I already added '=?utf-8?B?'.base64_encode which only fixed the subject. but all the body still appear something like this: ĞÜLŞÖÇI ğüşiöçı if typed ĞÜLŞÖÇI ğüşiöçı for example.
<?php
if (isset($_POST['name']) && isset($_POST['email']) && isset($_POST['message']) && isset($_POST['subject'])) {
$companyname = $_POST['company-name'];
$name = $_POST['name'];
$email = $_POST['email'];
$areacode = $_POST['areacode'];
$phone = $_POST['phone'];
$city = $_POST['city'];
$state = $_POST['state'];
$subject = $_POST['subject'];
$message = $_POST['message'];
$to = "";
$subject = "$subject";
$message = "Name: $name\nPhone Number: $areacode $phone\nCity: $city\nState: $state\n\n$message";
$headers = "From: $email";
$mailed = mail($to, '=?utf-8?B?'.base64_encode($message).'?=', $message, $headers);
if (isset($_POST['ajax'])) {
$response = ($mailed) ? "1" : "0";
} else {
$response = ($mailed) ? "<h2>Success!</h2>" : "<h2>Error! There was a problem with sending.</h2>";
}
echo $response;
} else {
echo "Form data error!";
}

Answer 1

You should also encode your message (UTF8).
You can do it using the headers parameter of the mail function.
additional_headers
String to be inserted at the end of the email header. This is
typically used to add extra headers (From, Cc, and Bcc). Multiple
extra headers should be separated with a CRLF (\r\n). Validate
parameter not to be injected unwanted headers by attackers.
Replace the next code:
$headers = "From: $email";
With:
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=utf-8' . "\r\n";
$headers .= 'From: '.$email . "\r\n";
Should work.
Update me if not.