Setting Up PHP Mailer

Question

I have a few questions regarding setting up a PHP mailer.... My first question being, does the PHP file/folders go in the same spot that all of my others (.html, css, and JS)?

If so, then I do indeed need some help setting this up, or am getting a little lost... My PHP file is as follows:

<?php

    $emailTo = "myemail@yahoo.com"; // Enter your email for feedbacks here 

    $headers = "MIME-Version: 1.0\r\n";
    $headers .= "Content-type: text/html; charset=utf-8\r\n";
    $headers .= "From: ".$_POST['rsEmail']."\r\n";

    if (!isset($_POST['rsSubject'])) {
        $subject = "Contact Form Message"; // Enter your subject here
    } else {
        $subject = $_POST['rsSubject'];
    }

    reset($_POST);

    $body = "";
    $body .= "<p><b>Name: </b>".$_POST['rsName']."</p>";
    $body .= "<p><b>Email: </b>".$_POST['rsEmail']."</p>";
    $body .= "<p><b>Subject: </b>".$subject."</p>";
    $body .= "<p><b>Message: </b>".$_POST['rsMessage']."</p>";  

    if( mail($emailTo, $subject, $body, $headers) ){
        $mail_sent = true;
    } else {
        $mail_sent = false;
    }   
    if(!isset($resp)){
        echo json_encode($mail_sent);
    }
?>

And I believe the corresponding javascript I have along with it is:

function isValidEmail(emailAddress) {
        var pattern = /^([a-z\d!#$%&'*+\-\/=?^_`{|}~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+(\.[a-z\d!#$%&'*+\-\/=?^_`{|}~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+)*|"((([ \t]*\r\n)?[ \t]+)?([\x01-\x08\x0b\x0c\x0e-\x1f\x7f\x21\x23-\x5b\x5d-\x7e\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]|\\[\x01-\x09\x0b\x0c\x0d-\x7f\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))*(([ \t]*\r\n)?[ \t]+)?")@(([a-z\d\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]|[a-z\d\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF][a-z\d\-._~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]*[a-z\d\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])\.)+([a-z\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]|[a-z\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF][a-z\d\-._~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]*[a-z\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])\.?$/i;
        return pattern.test(emailAddress);
    };

Thank you guys for the assistance! Means a lot :)

Edit: When the form is filled out correctly, it says: "Congratulations your message was sent" -- meaning that it was a valid form submission, I just never actually get the email.

Edit 2: I went to my filezilla to try and edit/view the js file from there, I get the following error:

Not entirely sure what that entails (kind of newish to this all). Also here is my form:

                        <form class="rsForm" action="php/mailsender.php" method="post">
                            <div class="input-field">
                                <label>Name</label>
                                <input type="text" name="rsName" value="">
                                <span class="line"></span>
                            </div>

                            <div class="input-field">
                                <label>Email</label>
                                <input type="email" name="rsEmail" value="">
                                <span class="line"></span>
                            </div>

                            <div class="input-field">
                                <label>Subject</label>
                                <input type="text" name="rsSubject" value="">
                                <span class="line"></span>
                            </div>

                            <div class="input-field">
                                <label>Message</label>
                                <textarea rows="4" name="rsMessage"></textarea>
                                <span class="line"></span>
                            </div>

                            <span class="btn-outer btn-primary-outer ripple">
                                <input class="rsFormSubmit btn btn-lg btn-primary" type="submit" value="Send">
                            </span>
                        </form>

Answer 1

so unless your form is on a website that's already hosted by a web hosting service, or you have something like MAMP PRO to test your web page on a local server (PRO because it comes with Postfix), you won't recieve the email.

For the PHP to actually email you, you need a MTA (Mail Transfer Agent) like Postfix. When you get your website hosted, they automatically set one up (usually) for you on their servers. If you are testing locally like putting the file path in your browser, you won't get the email as your local host is not set up with an MTA.

Check out Test emails locally with mamp to learn how to test your email forms without setting your website up on a professional server yet.

If you have any more questions regarding this, tag me in the comments!

PS. This is a very common problem that people don't know about. It got me the first time too, which is why I bought MAMP PRO for testing websites forms.