Category: PHP

I’m getting this error in relation to the ‘Grid & List toggle for Woocommerce’ plugin, specifically this file:

/wp-content/plugins/grid-list-toggle-for-woocommerce/woocommerce_grid_list.php on line 115

Basically, the error was corrected by surrounding the code after global $post with the following statement:

if ( is_object( $post )) {

Download the Corrected File

Use shortcode: [show-product-categories-with-image]

Add the following to your functions.php file.

function showProductCat() {

$cat_args = array(
'orderby' => 'name',
'order' => 'asc',
'hide_empty' => true,
);

$product_categories = get_terms( 'product_cat', $cat_args );

$result = "<div class='product-categories-with-image'>";

if( !empty($product_categories) ){

foreach ($product_categories as $key => $category) {

$thumb_id = get_woocommerce_term_meta( $category->term_id, 'thumbnail_id', true );
$term_img = D0d_get_attachment_image_src( $thumb_id, 'thumbnail', true );

$cat_img = "";

if ($term_img[3]) {
$cat_img = "<img src='". $term_img[0] ."' width='" . $term_img[1] . "' height='" . $term_img[2] . "' />";
}

$result = $result . '<a href="'.get_term_link($category).'" >'
. $cat_img
. $category->name
. '</a><br/>';
}

}

$result = $result . "</div>";

return $result;
}
add_shortcode('show-product-categories-with-image', 'showProductCat');

Here’s how to deactive a Sidebar or Widgetized Area in WordPress so it won’t show on the website and neither will it show on the Widgets section of the wordpress backend.

First, get the name of the sidebar, you may need to check the theme functions file to get exactly it is.

In this case, we will assume that the sidebar name is ‘sidebar-1’.

Add the code below to your functions file.

function remove_some_widgets(){

	// Unregister sidebar
	unregister_sidebar( 'sidebar-1' );

}
add_action( 'widgets_init', 'remove_some_widgets', 11 );

Here’s how to embed a page created with Visual Composer onto another page with the page CSS styles included. You can add this code to either the header or footer file of your theme, or another theme file for that matter.

In other words, include a Visual Composer Page as a header, footer or sidebar.

First step: note the id of the page to be embedded. In our example, let’s assume the id of the page to be embedded is 899.

Use this snippet and put the id into the first line of code as indicated below.

$id = 899;	//Assumes the page id to be embedded is 899
$p = get_page($id);


//Loads page styles
$shortcodes_custom_css = get_post_meta( $id, '_wpb_shortcodes_custom_css', true );
if ( ! empty( $shortcodes_custom_css ) ) {
    echo '<style type="text/css" data-type="vc_shortcodes-custom-css-'.$id.'">';
        echo $shortcodes_custom_css;
    echo '</style>';
}

//Loads page content
echo apply_filters('the_content', $p->post_content);

If you are familiar with WordPress themes then you know that a lot of themes have a widgetized sidebar. This means that you can add, remove, and re-order widgets on your WordPress website by using the “widget” section of your WordPress dashboard.

Having a widgetized sidebar is very useful, but you may want to widgetize other parts of your WordPress theme as well. This is very easy to do, and once your theme is modified it will be simple for you, or the WordPress administrator, to swap widgets in and out of different parts of the website.

Step 1: Add code to theme
The first step is to add the following line of code to the part of your theme that you want to widgetize. Be sure to change “Name of Widgetized Area” to a name that makes sense for you. You will need to do this with a code editor and then upload the file via a FTP client.

<?php
if ( is_active_sidebar( 'custom-header-widget' ) ) : ?>
    <div id="header-widget-area" class="chw-widget-area widget-area" role="complementary">
    <?php dynamic_sidebar( 'custom-header-widget' ); ?>
    </div>
    
<?php endif; ?>

Step 2: Edit functions.php
In your WordPress theme folder, there should be a functions.php file. If there isn’t, just make a new file and name it “functions.php”.

In the functions.php file, add the following code:

function wpb_widgets_init() {
    register_sidebar( array(
        'name'          => 'Custom Header Widget Area',
        'id'            => 'custom-header-widget',
        'before_widget' => '<div class="chw-widget">',
        'after_widget'  => '</div>',
        'before_title'  => '<h2 class="chw-title">',
        'after_title'   => '</h2>',
    ) );
}
add_action( 'widgets_init', 'wpb_widgets_init' );

The code above should be wrapped in PHP open and close(<?php and ?>, respectively) tags. If you already have a functions.php file those tags will already be there. If you created one yourself you will have to add them.

Make sure to change the name of the function (in this case it is “Name of Widgetized Area”) so that it matches the name you gave it in step 1.

The ‘before_widget’ and ‘after_widget’ parameters allow you to specify what code you would like to put before and after each widget. In this case I put a div with an class for styling purposes.

The ‘before_title’ and ‘after_title’ parameters allow you to wrap the widget titles in code. In this case I wrapped the title in <h3> and </h3> tags respectively.

Step 3: Adding Widgets
Once you have successfully added the widgetized area, you can start adding widgets to your WordPress site. To do this, log into your WordPress dashboard, then click on Widgets in the Appearance dropdown on the left side.

You should now see the “Name of Widgetized Area” section on the right side of your screen.

Now just click and drag widgets into the box just like your sidebar!