boldthemes

<p>Filter Everything Extra is a simple yet useful add-on plugin that adds additional functionality to the <a href="https://wordpress.org/plugins/filter-everything/" rel="ugc">Filter Everything</a> plugin.</p>
<p>With Filter Everything Extra, you can easily select all filter items, clear the selection, or invert the selection, which is particularly useful when there are many filter items. For example, if there are 25 brands in one filter and you want to search all brands except one, you can select the unwanted item and then invert the selection with one click instead of selecting the other 24 items one by one.</p>
<p>Once Filter Everything Extra is installed and activated, you will see All, None, and Invert buttons at the top of existing filters. These buttons are available on filters that use checkboxes or label lists.</p>
<p>The All button selects all items in the filter, None clears the selection, and the Invert button inverts the current selection.</p>


Filter Everything Extra

Additional functionality for the Filter Everything plugin.

PickPlugins

<p>Every WooCommerce site needs a good WooCommerce product filter system in order to be a good e-commerce site. As an online shop contains a ton of products so it’s kinda hard for anyone to find anything instantly.When a customer visits a e-commerce site, he or she in a hurry. Usually, online shopping is much more preferable to many people as it takes less time to do the shopping. So when a person is in hurry and has to do his or her shopping, what he or she will need?  they will search for a search input box on that site. In that search box, they will type their desire product name, color etc and the product will come to their screen. They will buy that!! boom!! shopping is done. This kind of task is only possible by adding an excellent WooCommerce product filter plugin. Pickplugin has developed such type of plugin for WooCommerce Search plugin.</p>
<h3>PickPlugins product filter for WooCommerce by <a href="http://pickplugins.com" rel="nofollow ugc">http://pickplugins.com</a></h3>
<ul>
<li><a href="http://www.pickplugins.com/demo/wc-product-filter/shop/?ref=wordpress.org" rel="nofollow ugc">Live Demo</a></li>
<li><a href="https://www.pickplugins.com/documentation/wc-product-filter/?ref=wordpress.org" rel="nofollow ugc">Documentation</a></li>
<li><a href="https://www.pickplugins.com/support/?ref=wordpress.org" rel="nofollow ugc">Support</a></li>
</ul>
<h3>VIDEO TUTORIAL</h3>
<p><iframe loading="lazy" title="PickPlugins Product Filter for WooCommerce" width="750" height="563" src="https://www.youtube.com/embed/CXEJT96jMKU?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe></p>
<h3>Plugin Features</h3>
<ul>
<li>Filter by keywords</li>
<li>Filter by product categories</li>
<li>Filter by product tags</li>
<li>Filter by price range</li>
<li>Filter by order & order by</li>
<li>Filter onsale product</li>
<li>Filter in-stock</li>
<li>Filter by SKU</li>
</ul>
<h3>How to use?</h3>
<p>Please go to “Widgets” page and see there is a widget “WC Product Filter”, you can use this on sidebars.<br />
There is no option currently, we will update soon.</p>
<h3>How to add custom search field and filter products?</h3>
<p>you can add custom search field by action hook and filter products as well,</p>
<h3>Step 1:</h3>
<p>Add search input field</p>
<pre><code>add_action('WCProductFilter_fields','WCProductFilter_field_my_custom_input', 30);
function WCProductFilter_field_my_custom_input(){

    $WCProductFilter = isset($_GET['WCProductFilter']) ? sanitize_text_field($_GET['WCProductFilter']) :""; // check this to ensure for is submitted from WCProductFilter.
    $_custom_input = isset($_GET['_custom_input']) ? sanitize_text_field($_GET['_custom_input']) :""; // Do not forget to sanitization

    if(!$WCProductFilter):
        $_custom_input = '';
    endif;


    /*
     *
     * you can check conditional here.
     *
     * if(is_shop()):
     * execute code only shop page
     * endif;
     *
     * */

    if(is_shop()):
        // this will only display under shop page and hide others page
        ?>
        <div class="field-wrapper">
            <div class="label-wrapper">
                <label class=""><?php echo __('Custom Input','wc-product-filter'); ?></label>
            </div>
            <div class="input-wrapper">
                <input type="search" placeholder="<?php echo __('Custom input','wc-product-filter'); ?>" name="_custom_input" value="<?php echo $_custom_input; ?>">
            </div>
        </div>
    <?php
    endif;

}
</code></pre>
<h3>Step 2</h3>
<p>verify input variable and put on product query arguments</p>
<pre><code>function wc_pf_query_args_custom_field($args, $form_data){

    //default search query
    $args['s'] = isset($form_data['_custom_input']) ? $form_data['_custom_input'] : '';

    return $args;

}
add_action('wc_pf_query_args', 'wc_pf_query_args_custom_field');
</code></pre>
<h3>How to remove existing input fields?</h3>
<p>By action hook you can simply remove any input fields exist.</p>
<pre><code>remove_action('WCProductFilter_fields','WCProductFilter_field_keyword',30);
remove_action('WCProductFilter_fields','WCProductFilter_field_categories',30);
remove_action('WCProductFilter_fields','WCProductFilter_field_tags',30);
remove_action('WCProductFilter_fields','WCProductFilter_field_price_range',30);
remove_action('WCProductFilter_fields','WCProductFilter_field_order',30);
remove_action('WCProductFilter_fields','WCProductFilter_field_orderby',30);
remove_action('WCProductFilter_fields','WCProductFilter_field_onsale',30);
remove_action('WCProductFilter_fields','WCProductFilter_field_in_stock',30);
remove_action('WCProductFilter_fields','WCProductFilter_field_keyword',30);
remove_action('WCProductFilter_fields','WCProductFilter_field_sku',30);
</code></pre>


PickPlugins Product Filter for WooCommerce

Filter shop product by advance filter and search.

Filter Everything Extra vs PickPlugins Product Filter for WooCommerce