The do_action is in the wrong place. It is calling it’s self. You have this: public function hook_name() { do_action(‘hook_name’); } Do this: do_action(‘hook_name’); public function hook_name() { do_action(‘other_hook_name’); }
The output code of widget’s form method is added to page once for every instance of the widget (included the “dummy” instance contained in the “Available widgets” panel), so in your case the javascript code that defines the window.send_to_editor function may appear more than once, and the last instance overwrites the previous ones. There are … Read more
If this is really your code: <?php add_filter(‘attachment_fields_to_edit’, array($this, ‘attachment_fields’, 15, 2)); The reason it doesn’t work is because of a misplaced parenthesis. Try this: <?php add_filter(‘attachment_fields_to_edit’, array($this, ‘attachment_fields’), 15, 2);
As you have noticed already, $this will not work as you expected prior to PHP 5.4. You can read this in the PHP wiki. The reason: For PHP 5.3 $this support for Closures was removed because no consensus could be reached how to implement it in a sane fashion. This RFC describes the possible roads … Read more
What you are doing will work, and is correct as far as the PHP goes. Whether it is a good idea or not really depends on what you are doing specifically and whether you can do it with hooks— actions and filters– instead. If you can do it with hooks you probably should but your … Read more
You can’t add an action to wp_head inside a wp-cron job. The wp-cron tasks run outside of the normal flow, so while you can add your action, it won’t actually do anything to anybody viewing the page. Cron jobs are called via separate http requests, no user normally will see their results. In other words, … Read more
I’m wondering if i should refactor my plugin using a ‘private’ Observer/Mediator pattern ie. collect all relevant add_actions to my parent class only and baking up a pattern to notify/forward subclasses of events, reducing the impact of my plugin to WP event ques. The event queue is fundamental to WP, so it’s pretty fast and … Read more
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.
global variables are not a good solution Yes, I heard this sentence a lot of times, but as you experienced, sometimes some variables need to be accessed everywhere. Some modern PHP frameworks implement advanced patterns like IOC that helps in such type of things, but wordpress lacks in that, and this is the reason a … Read more
You cannot access the $headers property as it is a private property. Members declared as private may only be accessed by the class that defines the member For that reason, you get NULL when you try to access the property with wp_get_theme()->headers. You need to make use of the magic __get() method of the class … Read more