How can the use of button elements instead of input elements improve the submission of form data in PHP?

Using button elements instead of input elements in forms can improve the submission of form data in PHP by allowing for more flexibility in styling and behavior. Button elements can have text, icons, or other HTML elements inside them, making them more versatile for user interaction. Additionally, button elements can be styled using CSS to better match the design of the website.

<form method="post" action="submit.php">
  <input type="text" name="username" placeholder="Username">
  <input type="password" name="password" placeholder="Password">
  <button type="submit" name="submit">Submit</button>
</form>