The default response from admin-ajax.php is, die( ‘0’ ); …by adding your own wp_die() or exit() or die() after returning your desired content prevents the default response from admin-ajax.php being returned as well. It also generally means that your ajax call has succeeded. Ultimately, to answer your question, it’s meant to work this way. What … Read more
add_action(‘new_to_publish’, ‘your_function’); add_action(‘draft_to_publish’, ‘your_function’); add_action(‘pending_to_publish’, ‘your_function’);
Like kaiser answered template_redirect hook is indeed appropriate for redirects. Also you should use wp_redirect() function, rather than setting header.
It is mandatory, though it is not enforced. Consider the scenario when two WordPress site has been setup in the same database. One with prefix wp_ and another with wp2_. If you install your plugin in both of the sites with the prefix, your created tables will be wp_liveshoutbox for first site and wp2_liveshoutbox for … Read more
“Error: Options Page Not Found” Bug This is a known issue in the WP Settings API. There was a ticket opened years ago, and it was marked as solved — but the bug persists in the latest versions of WordPress. This is what the (now removed) Codex page said about this: The “Error: options page … Read more
Admin pages don’t use the body_class filter, use the admin_body_class filter to add classes to admin body tag instead. Note that $classes in that case is a string, not an array.
While I agree with the previous answers, to answer the question you actually asked, what comes to mind is to use one of these constants for wp-config.php: define(‘AUTH_KEY’, ‘redacted’); define(‘SECURE_AUTH_KEY’, ‘redacted’); define(‘LOGGED_IN_KEY’, ‘redacted’); define(‘NONCE_KEY’, ‘redacted’); They are meant to be unique across wordpress installations – and are about the only options for pre-existing keys to … Read more
The following small plugin creates a custom button inside line 1 of the WordPress TinyMCE Version 4, tested in WP Version 3.9-beta2. The plugin has var_dump included to understand the values. It’s also possible to add the button to other lines of the visual editor, only a other hook, like for line 2: mce_buttons_2. Result … Read more
get_template_part is a theme function. You can’t load plugin files with that function. Take a look at the source and you will notice the work is done by locate_template. Look at that source and you will see that it always loads from theme directories. However much you may want to use get_template_part it is the … Read more
You can use the remove_action() function, like this: remove_action(‘publish_post’, ‘old_action’); add_action(‘publish_post’, ‘new_action’); It’s important to note that if the old_action was added with a priority parameter, you must add that to the remove_action call, otherwise it will fail to remove it. There are other implications if the old_action was added within a class. See here … Read more