<?php 
echo "<option value=\"{$from}\">" . $from . '</option>';
?>
                        <option value="All">All</option>
                        <option value="Shelf">Shelf</option>
                        <option value="Store">Store</option>
                    </select>
                    </select>
                </div><br>
                <div class="col-lg-12">
                    <label>Search Category: </label>
                    <select class="form-control" name="cat_id" id="cat_id">
                        <?php 
require_once 'private/LMS_Engine.php';
$engine = new LMS_Engine();
$vals = $engine->get_all_book_categories();
//if(isset($_POST['cat_id'])){
echo "<option value=\"" . $cat_id . '">' . $engine->get_book_cat_name($cat_id)['name'] . '</option>';
//}
foreach ($vals as $values) {
    echo "<option value='{$values['id']}'>{$values['name']}</option>";
}
?>
                    </select>
                </div><br>
                <div class="col-lg-12">
                    <label>Search hint: </label>
                    <input type="text" class="form-control" name="hint" placeholder="Search"><br>
                </div>
                <div class="col-md-2 col-lg-2">
                    <input class="btn btn-primary btn-default" name="Search_Items" type="submit" value="Search Book" style="margin-top: 10px">