functions - Read For Learn

Use ‘add_theme_support’ instead of ‘add_custom_image_header’ In WordPress 3.4

Please read Updating Custom Backgrounds and Custom Headers for WordPress 3.4. Custom Headers Old method: // Define default header image constant define( ‘HEADER_IMAGE’, get_template_directory_uri() . ‘/images/headers/default.jpg’ ); // Define header image width constant define( ‘HEADER_IMAGE_WIDTH’, 1000 ); // Define header image height constant define( ‘HEADER_IMAGE_HEIGHT’, 198 ); // Define header text constant define( ‘NO_HEADER_TEXT’, false … Read more

wp_is_mobile function

No, it will fail. There are literally thousands of mobile clients, and not all send a usable User-Agent header. There are better ways to adjust the site to small screens (which is not necessary the same as mobile!). Use client side detection and offer a link to switch the view; save that option in a … Read more

Add body class of category parent

Use get_ancestors() to get the parent terms. Here is an excerpt from my plugin T5 Parent Terms in body_class: $ancestors = get_ancestors( get_queried_object_id(), get_queried_object()->taxonomy ); if ( empty ( $ancestors ) ) { return $classes; } foreach ( $ancestors as $ancestor ) { $term = get_term( $ancestor, get_queried_object()->taxonomy ); $new_classes[] = esc_attr( “parent-$term->taxonomy-$term->slug” ); } … Read more

Is it possible to override this function/class in a child theme?

You simply need to run your code on a higher priority than what the parent theme is, the default on add_action function is 10 so you can use: function s157343_unregister_widgets() { unregister_widget( ‘Chocolat_Widget_New_Entrys’ ); } add_action( ‘widgets_init’, ‘s157343_unregister_widgets’, 20 ); This will unregister that widget. Of course, you can still create a new class that … Read more

Copy and delete a directory with WordPress functions

The method rmdir() – source – : /** * Delete a directory. * * @since 2.5.0 * * @param string $path Path to directory. * @param bool $recursive Optional. Whether to recursively remove files/directories. * Default false. * @return bool Whether directory is deleted successfully or not. */ public function rmdir( $path, $recursive = false … Read more

syntax for remove_filter in parent theme with class

It looks like the plugin doesn’t want you do access the APP_Registration instance, so you can try this: add_filter( ‘register_url’, function( $url ) { // Adjust this to your needs $url = site_url( ‘wp-login.php?action=register’, ‘login’ ); return $url; }, 11 ); to override the plugin’s modifications, where we use a priority > 10.

How can I add an extra WooCommerce hook

You can create a hook by calling do_action, then referring to the hook in your functions.php with add_action. For example, in the theme, where you want the action to occur: do_action(‘woocommerce_before_single_product_intro’); Then in functions.php add_action(‘woocommerce_before_single_product_intro’,’your_function’,[…]); For the sake of maintainability, I’d choose a naming convention that doesn’t confuse your hooks with WooCommerce’s.

How to use wp_get_recent_posts with many post types?

Use post types as an array. $args = array( ‘numberposts’ => ‘5’, ‘post_type’ => array(‘cpt1’, ‘cpt2’, ‘cptn’) ); $recent_posts = wp_get_recent_posts( $args );

Show/hide Widgets in Dashboard Based on Current Advanced Custom Fields Option

You’re in luck. I was actually looking for an excuse to do this on one of my projects. I finally took the time to add this idea into one of my themes. 🙂 You can take this idea and run with it. It’s very basic and bare-bones example, but it does what you want it … Read more

Change number of posts to show on Archive page (custom post type)

Just make sure you’re not in the admin when changing the query: function num_posts_archive_project_ie($query) { if (!is_admin() && $query->is_archive(‘projects-ie’) && $query->is_main_query()) { $query->set(‘posts_per_page’, 6); } return $query; } is_admin() does return true only if you’re in the backend (it does not, however, verify that the current user is an admin user, despite the name, don’t … Read more

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