how to send date and multiple selected values to email using

Question

php mail() function?

1)appointment.html

<section id="service-single-area">
<div class="container">
<div class="row">
<div class="col-lg-9 col-md-8 col-sm-12 col-xs-12 pull-right">
<div class="service-single-content">
<div class="appoinment-form">
<div class="title">
<h2>Make an Appoinment</h2>
</div>
<form id="appoinmentone" name="appointment" action="sendmail.php" method="post" enctype="text/plain" >
<div class="row">
<div class="col-md-6">
<input type="text" name="name" value="" placeholder="Your Name*"
required="" >
<input type="email" name="email" value="" placeholder="Your Mail*"
required="" >
<input type="text" name="mobile" value="" placeholder="Phone Number*"
required="" >
<input type="date" name="date" value="" placeholder="Apointment Date*"
required="">

</div>
<div class="col-md-6">
<select class="selectmenu" name="service[]" multiple="multiple">
<option selected="selected">Select Service</option>
<option>Commercial Aquaguard</option>
<option>Industrial RO Plants</option>
<option>Water Cooler</option>
<option>Commercial Vacuum Cleaner</option>
<option>Water Ionizers</option>
</select>
<textarea name="message" placeholder="Your Message.."
required="" ></textarea>
</div>
</div>
<div class="row">
<div class="col-md-12">
<form method="post" >
<a href="#" class="contact-btn" onclick="document.getElementById('appoinmentone').submit()">Send</a>
</form>
</div>
</div>
</form>
</div>

</div>
</div>
</div>
</div>
</section>

2)sendmail.php

<?php
if (isset($_POST['email']))
{
// EDIT THE 2 LINES BELOW AS REQUIRED
$email_to = "[email protected]";
$email_subject = "Appointment Received";
function died($error)
{
// your error code can go here
echo "We are very sorry, but there were error(s) found with the form you submitted. ";
echo "These errors appear below.<br /><br />";
echo $error . "<br /><br />";
echo "Please go back and fix these errors.<br /><br />";
die();
}
// validation expected data exists
if (!isset($_POST['name']) || !isset($_POST['email']) || !isset($_POST['mobile']) || !isset($_POST['date'])|| !isset($_POST['service'])|| !isset($_POST['message']))
{
died('We are sorry, but there appears to be a problem with the form you submitted.');
}
$name = $_POST['name']; // required
$email_from = $_POST['email']; // required
$mobile = $_POST['mobile']; // not required
$date = $_POST['date']; // required
$service = $_POST['service']; // required
$message = $_POST['message']; // required
$error_message = "";
$email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
if (!preg_match($email_exp, $email_from))
{
$error_message .= 'The Email Address you entered does not appear to be valid.<br />';
}
$string_exp = "/^[A-Za-z .'-]+$/";
if (!preg_match($string_exp, $name))
{
$error_message .= 'The First Name you entered does not appear to be valid.<br />';
}
if (strlen($mobile) < 11)
{
$error_message .= 'The mobile number you entered do not appear to be valid.<br />';
}
if (strlen($error_message) > 0)
{
died($error_message);
}
$email_message = "Form details below.\n\n";
function clean_string($string)
{
$bad = array(
"content-type",
"bcc:",
"to:",
"cc:",
"href"
);
return str_replace($bad, "", $string);
}
$email_message .= "First Name: " . clean_string($name) . "\n";
$email_message .= "Email: " . clean_string($email_from) . "\n";
$email_message .= "Mobile: " . clean_string($mobile) . "\n";
$email_message .= "Date: " . clean_string($date) . "\n";
$email_message .= "Services: " . clean_string($service) . "\n";
$email_message .= "Message: " . clean_string($message) . "\n";
$body = "Mail Send";
$msg = 'Name:-' . $_POST['name'] . "\n" . 'Email:-' . $_POST['email'] . "\n" . 'Mobile:-' . $_POST['mobile'] . "\n" . 'Date:-' . $_POST['date'] . "\n" . 'Services:-' . $_POST['service'] . "\n" . 'Message:-' . $_POST['message'];
mail($email_to, $email_subject, $msg);
// echo "Your E-mail has been sent !Thank you for contacting us. We will be in touch with you very soon.";
if($send_mail)
{
echo "Your E-mail has been sent !Thank you for contacting us. We will be in touch with you very soon.";
}
else
{
echo "E-mail sent was failed !";
}
?>
<!--include your own success html here-->

<?php
}
?>

please suggest me the solution for above problem. here i want to pass date and selected values to email along with other details