Removing action added from constructor

If that class works as a singleton and has a getInstance() method (or similar) to retrieve the instance, you can remove the action pretty much the same way it was added:

remove_action('wp_travel_engine_enquiry_form', array( $instance, 'wpte_enquiry_form' ));

Edit: I’ve looked into this some more, and you find the necessary information by looking into $wp_filters (global variable, so use global $wp_filters; before working with it in a function).

add_action("init", function() {
    global $wp_filter;
    foreach($wp_filter["wp_travel_engine_enquiry_form"][10] as $id => $filter) {
    if(is_array($filter["function"]) && && count($filter["function"]) == 2 &&
        get_class($filter["function"][0]) == "WP_Travel_Engine_Enquiry_Form_Shortcodes" &&
        $filter["function"][1] == "wpte_enquiry_form") {
            remove_action("wp_travel_engine_enquiry_form", $id);
        }
    }
}, 99);

This code is looking at the filters/actions (they are the same thing, but filters are generally expected to return something; internally, add_action is an alias for add_filter) for the wp_travel_engine_enquiry_form hook. 10 is the default priority, but you could easily iterate of the other priorities as well.

It then looks at each individual filter whether it is a callable with an object and a method, and whether that object is of the right type and the right method we want to remove. As the ID is known then, remove_action is used to manipulate $wp_filter.

It’s not the cleanest of ways, but drastic times call for drastic measures.

Related Posts:

  1. Where can I find a list of WordPress hooks?
  2. Difference between after_setup_theme and init action hooks?
  3. get $post in init filter or action?
  4. Whats worth using add_action when we can simply use add_filter?
  5. add_action(‘wp_ajax_[action name]’, myfunction) problem
  6. Hook on trash post
  7. Adding onload to body
  8. What is the earliest possible hook for safely using `is_front_page`?
  9. Send data to 3rd party api with wp_remote_post on wp_login
  10. How to customize the WP admin default help contents
  11. Hide gutenberg option blocks
  12. Difference between hooks Plugin_loaded and admin_int?
  13. Make W3 Total Cache “Empty All Caches” function purge varnish [closed]
  14. admin_post hook not called
  15. deactivated_plugin hook: get the name of the plugin
  16. Is there a hook for user activation (after they click the email confirm)?
  17. How to debug removal of rewrite rule flushing?
  18. function ‘wp_enable_block_templates’ not found
  19. How can I add a default description to uploaded files?
  20. Hook Widget to Woo Theme in functions.php
  21. Security around save_post hook
  22. How to pass arguments to add_action() [duplicate]
  23. How to use the post_updated hook before and after arguments
  24. What is the best filter where to use register_block_type?
  25. Check if do_action(‘custom_action’) is hooked into?
  26. I don’t understand why I shoud use lostpassword_url hook?
  27. How to get session token of current user in wp_login hook?
  28. wp_login Action hook with conditional tag
  29. Can I remove WooCommerce main content hook?
  30. How to alter the query using pre_get_posts hook and is_post_type_archive
  31. Hook any php file into the wordpress api
  32. WP CLI Get all Enqueued Scripts and Styles
  33. Delay an action until current action is completed
  34. How to properly setup an activation hook
  35. How to remove scripts/style added to customize_controls_enqueue_scripts hook by current active theme
  36. Help to change the text for new website notification (wpmu_welcome_notification)
  37. How to remove query string from current page URL?
  38. Plugins rewrite rules the right way
  39. Strange behaviour with add_{$meta_type}_metadata | add_post_metadata filter
  40. Plugin init hook
  41. Is there a hook that fires when a row of wp_sitemeta table is updated?
  42. Add nofollow to custom widget posts
  43. Change Password Confirmed Email Text
  44. How to check post type when using sanitize_title hook?
  45. Hook when editing user
  46. get_post_metadata causing some meta data to fail
  47. Register form: add custom field BEFORE default fields
  48. Custom Front End Registration – How Does the Key work in the Password Set Request?
  49. How to change the default mail when admin approuved an user?
  50. Lock user information once fields have been filled in
  51. How do I prevent term from being created on create_term hook?
  52. save_post hook to add terms getting deleted when using bulk edit
  53. Hook function prints output twice
  54. Hook priority in admin with custom plugin
  55. Add Different Actions To Different Page’s wp_footer
  56. Getting the post ID in parse_query
  57. Remove genesis_404 hook from genesis_loop [closed]
  58. What hooks do I need to hook into to capture ever wp_user creation/change?
  59. Is there a before_save_post hook or something similar
  60. Neccessary to call add_submenu_page and add_menu_page from admin_menu hook?
  61. Adding custom Bulk Actions
  62. Print results of a WP_Query to wp-admin/upload.php within ‘delete_attachment’ hook?
  63. upgrader_process_complete filter not fired using ajax updates
  64. How to debug wordpress hooked functions?
  65. Is there a way to Insert a post to post list?
  66. “Intercept” enqueing of 3rd party’s JS file
  67. How to call do_action() to pass arguments to hooked functions that take different number of args?
  68. WP hook to add custom content after the_title()
  69. Is it likely that do_action will have unexpected results?
  70. How to export category name and category link in wordpress json
  71. Error later wordpress 5.3.2 update. Please help
  72. How to abort a save operation with a WordPress hook?
  73. wp_get_current_user Not working
  74. is_page not triggering
  75. admin_post_(action) hook create console log error
  76. Check if front page within function passed to action
  77. Hook after creating a post and retrieve infos from this post immediatly
  78. Display custom debug info inside page and not before head
  79. calculate values from a field and insert them into custom fields when publishing or updating post
  80. $new_pass always returns null – password_reset hook
  81. How to resolve 500 error in post listing page?
  82. Object oriented programming, add_action in constructor not firing
  83. Get new (not old) post inside transition_post_status hook
  84. How to Show Different Information to your authors/contributers
  85. Cannot override hooks.php
  86. Removing action from template class
  87. Remove “enqueued” script from array
  88. theme functions (hooks)
  89. Function is Missing an Action Hook
  90. frontend show edit profile with selected custom options
  91. How to access variables in the function where apply_filters() is called?
  92. How to change Akismet commenter privacy notice?
  93. How To Apply Different Styles To All Blocks Based on Post Meta Value?
  94. PHP Notice: wp_enqueue_script was called incorrectly. Scripts and styles should not be registered
  95. How to add action in wordpress custom plugin?
  96. getSaveContent.extraProps hook for core/post-title doesn’t add new attributes on to the frontend
  97. WP: Override/update the_content from database with the publicly echo the_content
  98. What is the equivalent hook for both admin_head() and wp_head() combined, if any?
  99. Search WordPress Hook for completed Elementor Update
  100. How to filter the URL of thumbnail size in the Media Grid and admin pages

Leave a Comment