There is a magic action all which is called on every action or filter. You can hook into this action and log all associated functions. In $GLOBALS[‘wp_filter’] which you can inspect too you can find all active hooks, eg. hooks that are actually used. I have written a small plugin T5 Debug Hook to see … Read more
I’m using the Gutenberg editor as a replacement for a whiteboard in a classroom. I’m able to make the classroom more interactive by having students work directly inside the Gutenberg editor. What a cool use of WordPress you describe there! Is it possible to load this script inside the Gutenberg editor, so that while my … Read more
Your problem is a simple typo: array($this, ‘manage_post_columns’, 10, 2) VS. array($this, ‘manage_post_columns’), 10, 2 I guess you see the difference
Your remove_action has to have a priority matching the priority used in add_action. Important: To remove a hook, the $function_to_remove and $priority arguments must match when the hook was added. This goes for both filters and actions. No warning will be given on removal failure. http://codex.wordpress.org/Function_Reference/remove_action In you case, it looks like remove_action(‘wp_head’, ‘theme_metas’); should … Read more
Short answer: no. Long answer: also no. Actions don’t work that way. Edit: To elaborate and make your question totally generic: function foo() { bar(); return 1; } function bar() { // stuff } There is nothing you can put in stuff that will prevent a call to foo() from returning 1, other than halting … Read more
From the Codex: admin_init is triggered before any other hook when a user access the admin area. This hook doesn’t provide any parameters, so it can only be used to callback a specified function. So yes, it’s run on every admin page load.
The function checks your version of WP for possible updates. It appears that there is a transient in the database named ‘update_core’, so it’s stored in the $wpdb->options table as ‘_site_transient_update_core’. The value of that transient is a serialized object that has information, I’m not an expert on wp_version_check, but it uses that transient to … Read more
wp_insert_post was introduced in changeset 2887, and was to fix bug #1681. I couldn’t find the save_post hook’s original provenance, but it was most recently added to core in changeset 3291, related to ticket #2063. Evidently it had existed in 1.5.2 (although version control does not support this theory) and needed to be added back … Read more
function pj_time () { echo current_filter(); } Easier than I thought đŸ˜‰ http://codex.wordpress.org/Function_Reference/current_filter
If you pass an array to do_action_ref_array(), each element’s value of that array will be passed as a separate parameter to the callback. The keys are lost. If you pass an array to do_action(), the complete array will be passed as one single parameter to the callback. The keys stay intact. Let’s look at the … Read more