How can the PHP code be modified to allow submission by pressing the Enter key instead of clicking the "Login" button?

To allow submission by pressing the Enter key instead of clicking the "Login" button in a PHP form, you can use JavaScript to trigger the form submission when the Enter key is pressed. This can be achieved by adding an event listener to the input fields that listens for the Enter key press event. 

<form method="post" action="login.php" id="loginForm">
  <input type="text" name="username" placeholder="Username">
  <input type="password" name="password" placeholder="Password">
  <button type="button" onclick="login()">Login</button>
</form>

<script>
document.getElementById("loginForm").addEventListener("keyup", function(event) {
  if (event.key === "Enter") {
    document.getElementById("loginForm").submit();
  }
});

function login() {
  document.getElementById("loginForm").submit();
}
</script>

Keywords

PHP form submission Enter key event listener JavaScript

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