Php contact form Encoding issue - php

Question

I have a contact form made with php on my website. The problem is that it perfectly sends english letters but doesn't support russian letters. So, I need to change the encoding, how do i do that?
Here is a code:
<div id="center">
<p class="please">Please contact us using this form.</p>
<div id="formbox">
<?
if (isset ($_POST['message'])) {
$name = # trim ($_POST['name']);
$contact = # trim ($_POST['contact']);
$message = # trim ($_POST['message']);
if (! $name or ! $contact or ! $message) echo ('<p style="color: red">You should fill in all the blanks.</p>');
else { mail ("support#myemail.com",
"Message from Giftosite (Sender: $name)",
"$message \n\n Reply to: \n $contact");
echo ('<p style="color: green">Message has been sent, thank you!</p>');
$_POST['name'] = $_POST['contact'] = $_POST['message'] = '';
}
}
?>
<form method="POST" class="form">
<p class="formcontent">Your name:</p>
<input name="name" value="<?=#$_POST['name'];?>">
<p class="formcontent">Your e-mail address:</p>
<input name="contact" value="<?=#$_POST['contact'];?>">
<p class="formcontent">Message:</p>
<textarea name="message" rows="6" cols="36"><?=#$_POST['message'];?></textarea>
<p><input type="submit" value=" Send "></p>
</form>
</div>
</div>

Answer 1

Set headers in your email
$to = 'nobody#example.com';
$subject = 'the subject';
$message = 'hello';
$headers = 'From: webmaster#example.com' . "\r\n" .
'Content-type: text/html; charset=UTF-8;' . "\r\n" .
'Reply-To: webmaster#example.com' . "\r\n" .
'X-Mailer: PHP/' . phpversion();
mail($to, $subject, $message, $headers);
So, in your code instead of this
mail ("support#myemail.com", $message from Giftosite (Sender: $name)", "$message \n\n Reply to: \n $contact");
You will have
$headers = 'From: webmaster#example.com' . "\r\n" .
'Content-type: text/html; charset=UTF-8;' . "\r\n" .
'Reply-To: webmaster#example.com' . "\r\n" .
'X-Mailer: PHP/' . phpversion();
mail ("support#myemail.com", $message from Giftosite (Sender: $name)", "$message \n\n Reply to: \n $contact", $headers);

Answer 2

You need to set header for your email before sending Unicode characters, try this
$header_ = 'MIME-Version: 1.0' . "\r\n" . 'Content-type: text/html; charset=UTF-8' . "\r\n";
mail ("support#myemail.com",
"Message from Giftosite (Sender: $name)",
"$message \n\n Reply to: \n $contact", $header_);