Bootstrap contact form not function -php - php

Question

I had coded html and php but cloudsblack84#gmail.com(mail address) still cannot receive mail form my website ( http://cloudsblack.info/ ) and at the end when I clicked the submit button will go into blank page (http://cloudsblack.info/index.php) . Sorry I am just beginner on web design need to learn a lot from you guys .
HTML PART
<!-- Contact Section -->
<section id="contact" class="contacts-section">
<div class="container content-lg">
<div class="title-v1">
<h2>Contact Us</h2>
<p>I'm always happy to hear from you. Please contact or email me for appointment or service enquiry.</p>
</div>
<div class="row contacts-in">
<div class="col-md-6 md-margin-bottom-40">
<ul class="list-unstyled">
<li><i class="fa fa-home"></i> Kuala Lumpur</li>
<li><i class="fa fa-phone"></i> (6)016-7187764</li>
<li><i class="fa fa-envelope"></i> -removed-email-</li>
</ul>
</div>
<div class="col-md-6">
<form method="post" action="index.php">
<label>Name</label>
<div class="row margin-bottom-20">
<div class="col-md-7 col-md-offset-0">
<input type="text" name="name" class="form-control">
</div>
</div>
<label>Email<span class="color-red">*</span></label>
<div class="row margin-bottom-20">
<div class="col-md-7 col-md-offset-0">
<input type="text" name="email" class="form-control">
</div>
</div>
<label>City</label>
<div class="row margin-bottom-20">
<div class="col-md-7 col-md-offset-0">
<input type="text" name="city" class="form-control">
</div>
</div>
<label>Telephone</label>
<div class="row margin-bottom-20">
<div class="col-md-7 col-md-offset-0">
<input type="text" name="telephone" class="form-control">
</div>
</div>
<label>Interested</label>
<div class="row margin-bottom-20">
<div class="col-md-7 col-md-offset-0">
<input type="text" name="interested" class="form-control">
</div>
</div>
<label>Message</label>
<div class="row margin-bottom-20">
<div class="col-md-11 col-md-offset-0">
<textarea rows="8" name="message" class="form-control"></textarea>
</div>
</div>
<p><button type="submit" name="submit" class="btn-u btn-brd btn-brd-hover btn-u-dark">Send Message</button></p>
</form>
</div>
</div>
</div>
PHP PART
<?php
$name = $_POST['name'];
$email = $_POST['email'];
$city = $_POST['city'];
$telephone = $_POST['telephone'];
$interested = $_POST['interested'];
$message = $_POST['message'];
$submit = $_POST['submit'];
if($submit){
$from = 'From: -removed-domain-'."\r\n";
$to = '-removed-email-';
$subject = "Message from -removed-domain-";
$body = "".
"From: ".$name."\n".
"E-mail: ".$email."\n".
"City: ".$city."\n".
"Telephone: ".$telephone."\n".
"Interested: ".$interested."\n".
"Message: ".$message."\n";
if(mail($to, $subject, $body, $from)){
echo '<p>Your message has been sent!</p>';
}
else{
die('<p>Something went wrong, go back and try again!</p>');
}
}
?>

Answer 1

If you see the message Something went wrong, go back and try again! your mail server is incorrectly configured within php.ini or it has timed-out
If you see Your message has been sent!, check your spam folder.
If all else fails, access your mail server logs through WHM or CPanel or contact your hosting provider
$submit = $_POST['submit'];
You havn't given the <button name='submit'> a value, if($submit){ is false/non-existent in your POST data.
Still not a reason for the blank page, need to look at your apache/php error logs or ask your hosting provider.