Google Recaptcha PHP Not Working - php

Question

I have been building a Google ReCaptcha into a simple contact me form. I have been working on this for a couple of days now and I feel like there are 10 different ways to do it, but not of it "makes sense" or has clicked so far. The current code I have down is what I feel like would make sense best for me, but maybe someone else has a better way or tutorial.
Here is my question: Why is my form not connecting to Google's Servers and verifying and why am I not getting an echo when submitted.
CODE:
<div class="contactme" id="contactme">
<form class="form-horizontal" method="post" name="myemailform" id="myform" action="form-to-email.php">
<fieldset>
<h2>Let's Create Together</h2>
<hr class="small">
<div class="form-group">
<label class="col-lg-2 control-label">Name</label>
<div class="col-lg-10">
<input type="text" class="form-control" id="name" name="name" placeholder="Name" required>
</div>
</div>
<div class="form-group">
<label class="col-lg-2 control-label">E-Mail</label>
<div class="col-lg-10">
<input type="email" class="form-control" name="visitor_email" placeholder="E-Mail" required>
</div>
</div>
<div class="form-group">
<label class="col-lg-2 control-label">Message</label>
<div class="col-lg-10">
<textarea class="form-control" rows="8" name="message" required></textarea>
</div>
</div>
<div class="form-group">
<div class="col-lg-10 col-lg-offset-2">
<button type="reset" class="btn btn-default">Cancel</button>
<button type="submit" name="submit" id="submitbutton" class="btn btn-primary mainButton">Submit</button>
<div class="g-recaptcha" data-sitekey="--KEY--"></div>
</div>
</div>
</fieldset>
</form>
</div>
PHP on seperate document.
<?php
if($_POST['submit']) {
$yoursecret='--KEY--';
$response=file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=".$yoursecret."&response=".$_POST['g-recaptcha-response']."&remoteip=".$_SERVER['REMOTE_ADDR']);
$googleobj = json_decode($response);
$verified = $googleobj->success;
if($verified === true){
//do stuff
echo "Success!, you have been verified!";
} else {
echo "No Success!";
}
}
?>
I also strangely get an "=" at the top of page ever since messing PHP and RECAPTCHA. The site is live at joshkelley.video If you submit the form it just takes you to a blank page, regardless of the whether you verify the Recapcha.
Is there a community standard for doing these? All I could find was a few youtube out of date youtube tutorials.