Invoke a function before the action hook

Related Posts:

1. remove_action or remove_filter with external classes?
2. add_action reference a class
3. Why does save_post action fire when creating a new post?
4. Remove parent theme action in child
5. How to know what priority to use with add_action()?
6. How to do_action and get a return value?
7. Remove an action from an external Class
8. Difference between do_action_ref_array() and do_action()
9. Can my “add_action” function know the name of the hook calling it?
10. Why is there both a save_post and wp_insert_post action?
11. Does the event ‘wp_version_check’ even exist? What is it doing?
12. When is admin_init Action ran?
13. Can an action callback prevent the parent from continuing execution?
14. remove_action in a theme
15. add_action ‘manage_posts_custom_column’ in a class [closed]
16. How do I enqueue a script to run inside the Gutenberg editor?
17. How can I find out what functions are assigned to actions?
18. Unable to prevent function using save_post firing twice
19. Difference between do_action(‘admin_enqueue_scripts’, $hook_suffix) and do_action(“admin_print_styles-$hook_suffix”) syntax
20. Cron jobs in a class
21. Add something to beginning of the content
22. Disable WooCommerce action
23. How can I remove the WP menu from the admin bar?
24. When and Where to use wp_insert_post()
25. Why, Where, and When to use reference pointers in filters/hooks?
26. add_action customize_register not working
27. Passing arguments into ‘init’ function
28. Add a Custom Field in Comment Box AFTER text area BUT BEFORE Send button
29. How to use conditional add_action for WordPress
30. Using wp_insert_post and post_update_meta but need to fire save_post afterward
31. WP Schedule Event – Every Day When First Visitor Comes
32. enqueuing React script and hooking its target div fails to load script
33. wp_logout action not working
34. How to remove an action that is added inside a class
35. Having an add_action( ‘user_new_form’,) [closed]
36. Using auth_redirect returns cannot modify header information
37. add action which returns modified value
38. What would cause the ‘wp’ action to fire twice per page (but only once per post) in Firefox only?
39. Problem:Save Several Duplicate posts in The Database and then Error nesting level of ‘100’ reached
40. How to remove an action added by a child theme of Genesis
41. I don’t understand why I need a lower priority to remove an action with a higher priority to make it work
42. WordPress admin WP_table_list show incorrectly
43. wp_get_attachment_metadata returns false with add_action() ‘add_attachment’ hook
44. How to add a checkbox inside the “Publish post” widget?
45. Manually add admin bar
46. Is there a way to expose additional fields to the Bulk Action > Edit functionality?
47. What’s the usage of action do_meta_boxes?
48. How can I invoke an action after a CiviCRM triggering event?
49. Custom bulk actions in WP 3.7.1
50. Remove action from a plugin class
51. do_action pass array argument as reference not copy [duplicate]
52. how can I use add_action with external class which the function contain 2 argument?
53. remove_action not working with procedural function
54. Why Should We Use wp_clear_scheduled_hook and What it Does?
55. Woocommerce Change placement with wrapper
56. Modify query in pre_get_posts action is messing up my nav menu
57. Exclude trash from save_post
58. How to check if an action is already fired?
59. add_action and wp_head not display content in head section
60. Scheduled event won’t fire
61. Which action fire in front-end single post only
62. When should I call add_settings_section and add_settings_field?
63. use add_action(‘wp_head’) in a widget
64. Unable to show error message using wp_login action
65. Usage of do_action and add_adction
66. array of objects to do_action, callback gets singular object?
67. Preventing frontpage to be deleted/moved to trash
68. WP action is not triggering a do_action() call within?
69. Selectively applying action based on role
70. Mustn’t do_action be accompanied with a function?
71. where is the documentation for add_action() parameters?
72. How to set a different value in the generator meta tag?
73. How to remove a custom action on child theme?
74. Action hook on only publishing post not on editing or updating
75. how can I use add_action run another function when publishing new post?
76. Call add_action() in function wordpress
77. How to remove function?
78. Performance : Duplicating `add_action`
79. Validate form in functions.php, send errors back to template
80. What is the callback sent to add_submenu_page() invoked by WordPress?
81. remove_action returns FALSE
82. add_action in class and use it in theme
83. Remove action from shortcode
84. How to track post number on the_loop
85. How can I trigger actions manually?
86. Write automatic title at save_post (infinite loop)
87. How to get $tag to fill into add_action() or add_filter()?
88. Add meta field after post has been published
89. Better action hook for creating table than after_switch_theme and switch_theme action hook
90. Adding the hook ‘vc_before_init’ inside a object
91. $GLOBALS[‘hook_suffix’] variable empty
92. How to apply action the_post to the post that is only being mainly displayed
93. admin_notices on runtime in function
94. Using several add_action with parameters inside a class
95. Action hook load_textdomain $domain variable
96. publish_post action hook not working
97. Action hook for editing post
98. add_action() in switch statement
99. Problem with get_the_excerpt when using an add_action(‘the_content’) containing script tags
100. add_action and do_action: multiple calls to same callback?