<div class="col-md-2 col-lg-2">
                    <label class="label label-success" >From: </label>
                    <select class="form-control" name="from" id="from">
                        <?php 
echo "<option value=\"{$from}\">" . $from . '</option>';
?>
                        <option value="All">All</option>
                        <option value="Shelf">Shelf</option>
                        <option value="Store">Store</option>
                    </select>
                </div>
                <div class="col-md-2 col-lg-2">
                    <label class="label label-success">Category: </label>
                    <select class="form-control" name="cat_id" id="cat_id">
                        <?php 
$vals = $engine->get_all_cd_categories();
// if(isset($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>
                <div class="col-md-3 col-lg-3">
                    <label class="label label-success">Search hint: </label>
                    <input type="text" class="form-control" name="hint" placeholder="Search" value="<?php 
echo $hint;
?>
"><br>