Issue with PHP Email script - php

Question

I have a HTML form within one of my webpages, and i am now having trouble configuring it to the sendmail.php. When I fill in the form, and click submit, its asking me to save the file 'sendmail.php' but I want it to send to the email specified in the 'sendmail.php' file.
in my 'sendmail.php' file I currently have:
<?php
$element_1_1 = $_POST['element_1_1'];
$element_1_2 = $_POST['element_1_2'];
if(isset($_POST['submit'])){
$to = "sales#atechdigital.co.uk"; // this is your Email address
$from = $_POST['element_4']; // this is the sender's Email address
$first_name = $_POST['element_1_1'];
$last_name = $_POST['element_1_2'];
$subject = "Form submission";
$message = $element_1_1 . " " . $element_1_2 . " Has Sent A Quote Request";
$element_2 = $_POST['element_2'];
$element_3 = $_POST['element_3'];
$element_4 = $_POST['element_4'];
$element_5_1 = $_POST['element_5_1'];
$element_5_2 = $_POST['element_5_2'];
$element_5_3 = $_POST['element_5_3'];
$element_5_4 = $_POST['element_5_4'];
$element_5_5 = $_POST['element_5_5'];
$element_5_6 = $_POST['element_5_6'];
mail ($to,$element_4,$element_2,$element_3,$element_4,$element_5,$element_5_1,$element_5_2,$element_5_3,$element_5_4,$element_5_5,$element_5_6);
echo " Thank you " . $first_name . ", One of our sales team is dealing with you're request! We will contact you shortly.";
}
?>
and the html form is as follows:
<form id="form_824601" class="appnitro" method="post" action="sendmail.php">
<ul >
<li id="li_1" >
<label class="description" for="element_1">Name </label>
<span>
<input id="element_1_1" name= "element_1_1" class="element text" maxlength="255" size="8" value=""/>
<label>First</label>
</span>
<span>
<input id="element_1_2" name= "element_1_2" class="element text" maxlength="255" size="14" value=""/>
<label>Last</label>
</span>
</li>
<li id="li_2" >
<label class="description" for="element_2">Company Name </label>
<div>
<input id="element_2" name="element_2" class="element text medium" type="text" maxlength="255" value=""/>
</div>
</li>
<li id="li_3" >
<label class="description" for="element_3">Enter Contact Telephone Number </label>
<div>
<input id="element_3" name="element_3" class="element text medium" type="text" maxlength="255" value=""/>
</div>
</li>
<li id="li_4" >
<label class="description" for="element_4">Enter Email Address </label>
<div>
<input id="element_4" name="element_4" class="element text medium" type="text" maxlength="255" value=""/>
</div>
</li>
<li id="li_5" >
<label class="description" for="element_5">Request A Quote For ... </label>
<span>
<input id="element_5_1" name="element_5" class="element radio" type="radio" value="1" />
<label class="choice" for="element_5_1">Web Design</label>
<input id="element_5_2" name="element_5" class="element radio" type="radio" value="2" />
<label class="choice" for="element_5_2">SEO</label>
<input id="element_5_3" name="element_5" class="element radio" type="radio" value="3" />
<label class="choice" for="element_5_3">Social Media</label>
<input id="element_5_4" name="element_5" class="element radio" type="radio" value="4" />
<label class="choice" for="element_5_4">Graphic Design</label>
<input id="element_5_5" name="element_5" class="element radio" type="radio" value="5" />
<label class="choice" for="element_5_5">Video Marketing</label>
<input id="element_5_6" name="element_5" class="element radio" type="radio" value="6" />
<label class="choice" for="element_5_6">Maintenance</label>
</span>
</li>
<li class="buttons">
<input type="hidden" name="form_id" value="824601" />
<input id="saveForm" class="button_text" type="submit" name="submit" value="Submit" />
</li>
</ul>
</form>
I Hope someone can shed light on the issue I'm having!!

Answer 1

This will never work while you are running the script locally. You need to run it on a server that can handle PHP. The only way you could run it locally and that is if you have a local web server set up.
I hope this helps!

Answer 2

You can't run .php files just from the folder, you will need a web server to handle it for you. if you are running windows or mac , you can set one up using software like XAMPP (win + osx) , WAMP (win) , MAMP (osx).
If you happen you run a linux distribution, you can set up a LAMP server.
Here are some links:
https://www.apachefriends.org/index.html
http://www.wampserver.com/en/
http://www.mamp.info/en/
From the links above, xampp has always worked out the best for me performance wise. parsing a huge xml feed and putting it into a mysql database takes like half the time on xampp compared to wamp.