Using actions, hooks and filters in a non-WordPress page

It’s catch 22 – you need WordPress to use the hook system, but init will have already fired during load (wp-settings.php to be exact).

I would create a MU “Must Use” plugin (wp-content/mu-plugins/any-filename.php) for all your “outside of WordPress” functionality, with something like this at the start:

if ( ! defined( 'LOADED_EXTERNAL' ) || ! LOADED_EXTERNAL )
    return;

/**
 * Better technique for temporarily disabling a plugin on-the-fly.
 * 
 * @param   array   $plugins
 * @return  array
 */
function wpse_147541_active_plugins( $plugins ) {
    if ( $plugin = array_search( 'facetwp/index.php', $plugins ) )
        unset( $plugins[ $plugin ] );
    return $plugins;
}

add_filter( 'option_active_plugins', 'wpse_147541_active_plugins' );

// More awesome code!

And then in your external file:

define( 'LOADED_EXTERNAL', true );
require 'wp-load.php'; // No need for globalising variables, they'll all be in scope

The reason I advocate a MU plugin is that they run before regular plugins, so you’ll have time to intercept “FacetWP” (or any other plugins for that matter) from loading.

Related Posts:

  1. Send data to 3rd party api with wp_remote_post on wp_login
  2. How to know what functions are hooked to an action/filter?
  3. Difference between after_setup_theme and init action hooks?
  4. Please explain how these hooks work
  5. add_action(‘wp_ajax_[action name]’, myfunction) problem
  6. How to remove action hook done in a plugin from functions.php in my theme?
  7. trigger save_post event programmatically
  8. Implementing advanced add_* function wrappers
  9. My add_action (wp_footer, ‘method’) is not calling?
  10. What is the earliest possible hook for safely using `is_front_page`?
  11. is it possible to get the hook name in add_action?
  12. admin_post hook not called
  13. Check if action hook exists before adding actions to it
  14. deactivated_plugin hook: get the name of the plugin
  15. after login that will redirect user role into a page
  16. Detect type of post status transition
  17. Create hooks based on an array of hook names?
  18. Hook before inserting user into database [duplicate]
  19. How to pass arguments to add_action() [duplicate]
  20. do_action and hook methods
  21. How to use the post_updated hook before and after arguments
  22. Is there a recover_post hook to go with trash_post hook?
  23. WP Admin Bar frontend issue with dashicon deregister
  24. How can i trigger an action manually?
  25. wp_redirect() not working on form submission with init hook
  26. add_action for lost_password or modify wp-login.php?action=lostpassword
  27. Run add_action hook if condition
  28. Add my own function to existing WooCommerce hook
  29. Empty Super Cache programmatically (with ACF action) [closed]
  30. How to use do_action_ref_array?
  31. Admin Hook at the Login Page
  32. How to find hooks as per Just-In-Time approach?
  33. How To Make Sure That My Action Hook Executes Last
  34. Does update_comment_meta hook exists?
  35. how to determine how many and what kind of arguments are passed to hooks
  36. How to change the order (priority) of registered filters (or actions) (e.g. for the_content)?
  37. What’s hook to use immediately after a user is authentcated [duplicate]
  38. Looking for a hook for post.php
  39. Save User Meta Email Address in Lowercase
  40. Save acf field data via acf/save_post before post is saved
  41. Execute JavaScript in WordPress Hook
  42. schedule event in class oriented plugin
  43. Hooks are not being removed in child theme
  44. How to replace a function using a child theme?
  45. Removing parent theme action on pluggable function not working
  46. Which action hook should I use to intercept a form upon submission?
  47. Would there be anything stopping me from removing both wp_head and wp_footer?
  48. Is it possible to add the_content filter upon login?
  49. What hook is the currently active theme’s functions.php file loaded on? [duplicate]
  50. WordPress wp_loaded action hook
  51. add_action second argument missing
  52. I would like to send a notification email (Asana) whenever something is published (posts, pages, custom post types) [duplicate]
  53. admin_notices action doesn’t trigger within save_post action
  54. I don’t understand how add_action and do_action work in tandem. The former executes the code already…what is do_action for?
  55. Check if `do_action()` in WordPress returns any result
  56. How to cancel an action hooked to untrash_post? or any hook
  57. add_action hook for publish_post not working
  58. Hook for inserting?
  59. Notify admin when Custom post meta data gets updated or deletet
  60. dynamic add_action according to child pages (for homepage control)
  61. Remove action in a parent theme from the child theme
  62. Remove action within a class in a parent theme’s includes folder from the child theme
  63. Add html code in admin page
  64. Can an RSS item be altered with a hook?
  65. Action hook with wrapper html
  66. What hook to add at start of WordPress load
  67. A good hook to check authorization and redirect?
  68. Adding custom Bulk Actions
  69. Is there a author_update action?
  70. Post via wp-admin and via iOS app, same hooks and triggers involved?
  71. Restrict editing of post type to list stored in user meta
  72. How to stop execution of a function via add_action hook?
  73. Can we change the hook firing sequence?
  74. changing genesis_before_while in new theme framework
  75. Rewrite the search page to use an appended slug + parameter
  76. Session management issues with WordPRess 404 Error page
  77. How to hook add_action() into after category description with id?
  78. remove_action not working for a function
  79. Is update_post_meta used when save_post action hook is invoked?
  80. do_action not working in loop
  81. add_action doesn’t work for my function
  82. profile_update hook does not fire from front-end
  83. Add HTML code before the title of the Tag page
  84. How to trigger click events using hooks
  85. Hooks with same priority number. Can one stack items returned in divs, position: absolute each with their own z-index?
  86. Can add_image_size be added earlier
  87. $new_pass always returns null – password_reset hook
  88. Why does get_post() not return anything?
  89. WordPress save_post hook not firing when checking if _GET[‘post’] is set
  90. add hook restricted only to either plugins or themes?
  91. addaction hook cause redirection problem
  92. Removing action from template class
  93. Which hook should I use for this scenario regarding the registration process and account/profile update?
  94. frontend show edit profile with selected custom options
  95. Redirect back to origin page after using get_delete_post_link()
  96. How do I override the user’s input when updating a custom post type’s permalink?
  97. How to add a new link to the default register form’s footer links?
  98. admin_post hook not working
  99. How do I set a custom post type Category after import using wp_set_post_terms
  100. Hooks to trigger a callback when adding, removing, rearranging or updating a widget in the widget area
techhipbettruvabetnorabahisbahis forumutaraftarium24edusedueduseduedueduseduseduseduedu