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As @cybmeta already pointed out, you are too early with your removal. So you have to defer the actual removal, for instance like so: add_action( 'after_setup_theme', 'wpdev_170663_remove_parent_theme_stuff', 0 ); function wpdev_170663_remove_parent_theme_stuff() { remove_action( 'after_setup_theme', 'et_pb_setup_theme' ); }


There is nothing technically wrong with that, but backslashes are hard to type on some keyboard layouts. On a German keyboard for example, you have to hit the right AltGr key plus \ at the same time. This is not easy to type (and one of the reasons why I use an English keyboard). Use dots, colons or underscores to namespace your hooks. They are not bound ...


Here are two untested ideas: Idea #1: If you want to hook before an instance of the Plugin_Upgrader class is created with: $upgrader = new Plugin_Upgrader( ... ) where the upgrades are activated with: $upgrader->upgrade($plugin); // for a single plugin upgrade $upgrader->bulk_upgrade( $plugins ); // for bulk plugins upgrades then you ...


The functions.php file of child themes is loaded right before the parent theme functions.php, so when you run remove_action in child theme, the action you are trying to remove doesn't exist beacuse it is added later.


I'm afraid I cannot replicate your problem. I'm uncertain as to why it is going wrong as I cannot see the loop that is being used, but a way that you could probably ensure it works is to adjust your function to accept a $post input: //Social Media function showSocialButtons( $post = null ) { if( ! $post ){ global $post; } //The output ...


I'm not clear on how your code works as-is, as I mentioned in my comment. It looks like you're adding an action to call a function inside the function that you want to call with that action. If nothing outside the function invokes it, it never runs. add_action( 'template_redirect', 'check_breadcrumb_condition' ); function check_breadcrumb_condition(){ ...


Your first method doesn't work because you create a new instance of the class and try to remove the action from that new instance. That new instance you created is not the same instance that the action was added to, so it doesn't work. In the second example, you get the original instance that was created by the plugin, so removing the action from that ...

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