How can a valid HTML form structure improve the functionality of PHP code?

A valid HTML form structure can improve the functionality of PHP code by ensuring that the form data is properly formatted and easily accessible for processing. This includes using appropriate input field types, labels, and form attributes. By structuring the form correctly, PHP code can efficiently retrieve and manipulate the form data, leading to more reliable and effective form processing.

<form action="process_form.php" method="post">
  <label for="name">Name:</label>
  <input type="text" id="name" name="name">
  
  <label for="email">Email:</label>
  <input type="email" id="email" name="email">
  
  <input type="submit" value="Submit">
</form>