PHP form not working - php

Question

I am working on a website for a real estate agency. There is one page called the details.php page, here customers can see all the characteristics of a house that they are looking for. I have a contact form on this page for a customer to fill in when he/she is interested.
If I go to www.mywebsite.com/details.php, this contact form works as it should work, I receive the email with all the contact information.
Now when a real customer uses the webpage he/she will never go to the www.mywebsite.com/details.php instead it will look like: www.mywebsite.com/properties/house-for-sale-in-London/6227.php (just an example of a property)
Here is where the contact form breaks, it shows in the URL bar all the information that was filled in like this:
www.mywebsite.com/properties/house-for-sale-in-London/6227.php?action=submit&name=TEST&telefono=TEST%40test.com&email=test%40test.com&message=Etoy+interesado+en+ver+este+inmueble.+Por+favor+contáctame.&subnewtide=Submit
but it doesn´t send, neither does it echo the thank you message.
What did I do wrong?
This is the code:
<h3>¿Quieres más información?</h3>
<form role="form" class="form-b">
<?php
$action=$_REQUEST['action'];
if ($action=="") /* display the contact form */
{
?>
<div class="contact-form">
<form action="" id="form-anchor" method="POST" enctype="multipart/form-data">
<input type="hidden" name="action" value="submit"> Mi nombre:
<br>
<input name="name" type="text" value="" size="30" />
<br> Mi numero:
<br>
<input name="telefono" type="text" value="" size="30" />
<br> Mi correo:
<br>
<input name="email" type="text" value="" size="30" />
<br> Mensaje:
<br>
<textarea name="message" rows="3" cols="30">Estoy interesado en ver este inmueble. Por favor contáctame.</textarea>
<br>
<div class="enviar-button">
<input type="submit" class="btn btn-block btn-primary" name="subnewtide" id="subnewtide" value="Submit" />
</div>
</form>
</div>
<?php
}
else /* send the submitted data */
{
$name=$_REQUEST['name'];
$email=$_REQUEST['email'];
$telefono=$_REQUEST['telefono'];
$message=$_REQUEST['message'];
$info= "Nombre: .$name. \r\n";
$info.= "Email: $email \r\n";
$info.= "telefono: $telefono \r\n";
$info.= "Codigo: $codigo \r\n";
if (($name=="")||($email=="")||($message=="")||($telefono==""))
{
echo "All fields are required, please fill the form again.";
}
else{
$from="From: $name<$email>\r\nReturn-path: $email";
$subject="Message sent using your contact form";
mail("opcomercial#rentarpereira.com", $subject, $info, $message);
echo '<div class="gracias">Gracias por contactarnos, pronto un asesor atenderá tu solicitud.</div>';
}
}
?>
</form>

Answer 1

First of all if you're using POST method in the form parameters shouldn't be sent through the url. Now one of the issues might be the fact that you have a form nested in the form so it might take the first form element as the valid one and GET is the default method. So see if that might be the problem.