edit.php

<!-- Modal Structure -->
<form id="edit-modal-<?php echo $user->id ?>" class="modal" action="create.php" method="post">
  <div class="modal-content">
    <h4 class="row">Edit account for <?php echo $user->username ?></h4>
    <div class="row">
      <div class="col s12">
        <div class="row">
          <input name="username" type="hidden" value="<?php echo $user->username ?>" />
          <div class="input-field col s12 valign-wrapper">
            <i class="material-icons prefix valign">lock</i>
            <input id="password" name="password" type="password" class="validate" />
            <label for="password">New password</label>
          </div>
          <div class="input-field col s12">
            <h6> Access level: </h6>
            <input
                class="with-gap" name="access" type="radio"
                id="access-edit1-<?php echo $user->id ?>" value="admin" checked="checked"
            />
            <label for="access-edit1-<?php echo $user->id ?>">Admin</label> <br />
            <input
                class="with-gap" name="access" type="radio"
                id="access-edit2-<?php echo $user->id ?>" value="user"
            />
            <label for="access-edit2-<?php echo $user->id ?>">User</label>
          </div>
        </div>
      </div>
    </div>
  </div>
  <div class="modal-footer input-field">
    <button
      class="waves-effect waves-green btn-flat"
      type="submit" name="action"
      onclick="Materialize.toast('User updated', 4000)"
    >
        Change
    </button>
  </div>
</form>