That’s a very good question. It goes down to the dark heart of the plugin API and best programming practices. For the following answer I created a simple plugin to illustrate the problem with easy to read code. <?php # -*- coding: utf-8 -*- /* Plugin Name: Anonymous OOP Action */ if ( ! class_exists( … Read more
Just some general remarks: Why isn’t the following change working? $custom_message = get_the_title( $post->ID ) .”. $hash_tags; to: $custom_message = get_the_content( $post->ID ) .’ ‘. $hash_tags; Note that get_the_content() doesn’t take a post ID as an input parameter and it depends on global variables, like $pages that’s derived from $post->post_content (with some pagination adjustments), within … Read more
That’s a very good question. It goes down to the dark heart of the plugin API and best programming practices. For the following answer I created a simple plugin to illustrate the problem with easy to read code. <?php # -*- coding: utf-8 -*- /* Plugin Name: Anonymous OOP Action */ if ( ! class_exists( … Read more
I am confused because add_filter uses the word add when I feel like it is more on the lines of replace or overwrite (unless I am misunderstanding) You are misunderstanding. Both add_action and add_filter insert function callbacks into a kind of queue. You can add many callbacks to the same hook and they will fire … Read more