php mail (neviem preco mi to nejde)

    <div class="footer-right">
                    <h6 class="p-title">Napíšte nám</h6>
                    <p>Potrebuje sa o niečom informovať? Neváhajte a napíšte nám!</p>

                    <!-- form -->
                    <script type="text/javascript" src="js/form-validation.js"></script>
                          <form id="contactForm" action="send-mail.php" method="post">
                        <fieldset>
                            <div>
                                <input name="name"  id="name" type="text" class="form-poshytip" title="Whats your name?" value="Name" onfocus="defaultInput(this,'Name')" onblur="clearInput(this,'Name')" />
                            </div>
                            <div>
                                <input name="email"  id="email" type="text" class="form-poshytip" title="Enter a valid email address" value="Email" onfocus="defaultInput(this,'Email')" onblur="clearInput(this,'Email')"  />
                            </div>
                            <div>
                                <textarea  name="comments"  id="comments" rows="5" cols="20" class="form-poshytip" title="How can i help you?" onfocus="defaultInput(this,'How can i help you?')" onblur="clearInput(this,'How can i help you?')" >How can i help you?</textarea>
                            </div>
                            
                            <!-- send mail configuration -->
                            <input type="hidden" value="beccophotography@beccophotography.sk" name="to" id="to" />
                            <input type="hidden" value="beccophotography@beccophotography.sk" name="from" id="from" />
                            <input type="hidden" value="From contact form" name="subject" id="subject" />
                            <input type="hidden" value="send-mail.php" name="sendMailUrl" id="sendMailUrl" />
                            <!-- ENDS send mail configuration -->
                            
                            <p><input type="button" value="Send" name="submit" id="submit" /></p>
                        </fieldset>
                    </form>
                    <p id="success" class="success">Vaša správa bola úspešne odoslaná! :-)</p>
                    <!-- ENDS form -->
                </div>

<?php
//vars
$subject = $_POST['subject'];
$to = explode('', $_POST['to'] );

$from = $_POST['email'];

//data
$msg = "NAME: "  .$_POST['name']    ."<br>\n";
$msg .= "EMAIL: "  .$_POST['email']    ."<br>\n";
$msg .= "WEBSITE: "  .$_POST['web']    ."<br>\n";
$msg .= "COMMENTS: "  .$_POST['comments']    ."<br>\n";

//Headers
$headers  = "MIME-Version: 1.0\r\n";
$headers .= "Content-type: text/html; charset=UTF-8\r\n";
$headers .= "From: <".$from. ">" ;


//send for each mail
foreach($to as $mail){
   mail($mail, $subject, $msg, $headers);
}

?>