functions

Remove a menu item created by a plugin

function remove_submenu() { remove_submenu_page( ‘edit.php’, ‘edit-tags.php?taxonomy=faq-topic&post_type=question’ ); remove_submenu_page( ‘edit.php’, ‘edit-tags.php?taxonomy=faq-tags&post_type=question’ ); } add_action( ‘admin_menu’, ‘remove_submenu’, 999 ); Please read the Codex. remove_submenu_page() need two parameters and the right hook. And very important: Use a very, very, very high priority in your hook! If you use a low priority, your function will be executed before the … Read more

Sort posts by Date (DESC) and by Title (ASC)

You can pass an array to the query as the following example described in the Codex shows: $args = array( ‘orderby’ => array( ‘title’ => ‘DESC’, ‘menu_order’ => ‘ASC’ ) ); $query = new WP_Query( $args ); In your case will be something like this: /* Order Posts Alphabetically */ function prefix_modify_query_order( $query ) { … Read more

Perform an action when post is updated/published

The save_post action fires When a post is updated and/or published — including when a new post is inserted. <?php add_action( ‘save_post’, ‘wpse41912_save_post’ ); function wpse41912_save_post() { // do stuff } If you want your functions to fire only when a post is being edited, you can hook into edit_post. If you want it to … Read more

How to use the do_action () with parameter

The correct way is to pass first argument as a unique string which acts as an identifier for the action & any additional arguments after that do_action(‘unique_action_tag’, $parameter1, $parameter2,,,, & so on); To attach functions to this action you’ll do // 10 is the priority, higher means executed first // 2 is number of arguments … Read more

Does hooking into the same action multiple times drain memory?

I guess you mean add_action( ‘pre_get_posts’, ‘private_groups’ ); add_action( ‘pre_get_posts’, ‘search_results’ ); add_action( ‘pre_get_posts’, ‘name_profiles’ ); versus add_action( ‘pre_get_posts’, ‘combined_into_single_callback’ ); You can just check the difference using e.g. memory_get_usage() and timer_stop(). Many good plugins out there to help with that. I would say go with the first one, as they seems to be unrelated … Read more

Possible to search by author name with default WordPress search function?

Maybe you can try adding your condition directly in the query string, using something like this function wpse_29570_where_filter($where){ global $wpdb; if( is_search() ) { $search= get_query_var(‘s’); $query=$wpdb->prepare(“SELECT user_id FROM $wpdb->usermeta WHERE ( meta_key=’first_name’ AND meta_value LIKE ‘%%%s%%’ ) or ( meta_key=’last_name’ AND meta_value LIKE ‘%%%s%%’ )”, $search ,$search); $authorID= $wpdb->get_var( $query ); if($authorID){ $where = … Read more

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