Detect a specific update_user_meta in Worpress

Question

I would like to code a Wordpress/WooCommerce plugin launching a function every time this is called : update_user_meta($user_id,'mwb_wpr_points',$nomber_of_points); But I don't know which hook I should use and how to use it. JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

A similar question was asked here. The answer states that the insert_user_meta filter needs to be used. I haven't tested the below code, but I believe the value being updated will be stored in the $_POST. You can check against the existing value to determine if that field is being updated. Hopefully this is enough to get your started. add_filter('insert_user_meta', 'my_updated_user_meta', 10, 3); function my_updated_user_meta($meta, $user, $update) { // if not updating the field, because it is a create, do nothing if( true !== $update ) { return $meta; } $old_meta = get_user_meta( $user->ID ); if(isset($_POST['mwb_wpr_points']) && isset($old_meta['mwb_wpr_points'])) if($old_meta['mwb_wpr_points'][0] !== $_POST['mwb_wpr_points']) { // mwb_wbr_points has been updated. // do your code here } } return $meta; }