<?php if (isset($_POST['Update_Book'])) { require_once 'private/LMS_Engine.php'; $engine = new LMS_Engine(); $engine->update_book($_POST['lib_book_id'], $_POST['title'], $_POST['author'], $_POST['publisher'], $_POST['publish_year'], $_POST['publish_address'], $_POST['call_id'], $_POST['copy_number'], $_POST['shelf_store'], $_POST['cat_id']); $The_Book = $engine->get_book($_POST['lib_book_id']); } elseif ($_POST['Delete_Book']) { require_once 'private/LMS_Engine.php'; $engine = new LMS_Engine(); $engine->delete_book($_POST['lib_book_id']); } ?> <div class="container"> <br> <div class="row"><div class="col-lg-12"> <form class="form-horizontal" method="post" action="Librarian.php?page=library_books"> <div class="pull-right"style="margin-top: 20px" > <input class="form-control btn-primary"name="Go_To_Library" type="submit" value="Go To Library"><br> </div> <br> </div> </form> <hr> </div> <h3>Edit Book Parameters</h3> <hr> <form class="form-horizontal" method="post" action=""> <div class="col-sm-4 col-md-4 col-lg-4" > <div class="col-sm-12 col-md-12 col-lg-12" style="margin: 10px">