Outputting html form data

Question

HTML Code:

<form class="form-inline signup" role="form" action="script.php" method="post">
  <div class="form-group">
    <input type="email" class="form-control" id="exampleInputEmail1" placeholder="Enter your email address" name="email" > 
  </div>
  <button type="submit" class="btn btn-theme">Get notified!</button>
</form>

PHP Code:

<?php
  if (!empty($_POST["email"]))
    file_put_contents("emails.txt", file_get_contents("emails.txt") . "\n" . $_POST["email"]);
?>

I tried several methods before asking here but none works. When the button is click it loads the php code and shows a blank page on the browser.

Answer 1

You have to do a lot of things before you can start.

1. Set the action attribute of the form to a .php file.

    <form class="form-inline signup" role="form" action="write.php" method="post">

2. Give a name attribute to the <input /> element.

    <input type="email" class="form-control" id="exampleInputEmail1" placeholder="Enter your email address" name="email" />

3. In the write.php (or whatever PHP file you use), actually write to the file.

    <?php if (!empty($_POST["email"])) file_put_contents("emails.txt", file_get_contents("emails.txt") . "\\n" . $_POST["email"]); ?>

4. Last but not least, please run this on the server and not in browser:

    http://localhost/file.php