I need to get all categories from a WP_Query

Related Posts:

1. ajax category filter
2. Redirect to another page using contact form 7? [closed]
3. Filter Custom Taxonomy Posts
4. Include posts from some categories while excluding from others
5. Filter sub-category from checkbox form
6. Get categories within specific term
7. Multiple values in WP_Query : category__and
8. get term objects and post objects in query
9. List categories using WP_Query
10. Order by slug in get_terms with multiple taxonomies
11. How to loop for every result found in the_content() when using the search query?
12. WordPress Related Post by tags in Single.php
13. Function get_queried_object() return NULL in custom taxonomy
14. Using Ajax to load more posts | Help me change the wording on my button to notify the user
15. List of the years with posts presented
16. How to use filter hook “the_posts” with a function that refers to $this?
17. How to create a WordPress Post Filter that users can use to filter posts by year?
18. Remove a specific category ID from related post
19. Complex Category selection as per user input
20. Show all post for a given category
21. Querying on multiple taxonomies pulled from $_GET checkbox array not working?
22. List custom taxonomy terms sharing posts with a term from a second custom taxonomy
23. Five posts from a category in footer
24. Is there any advantage of using default WordPress Search instead of creating a custom one?
25. add_filter() depending on search term
26. Order By table field comment_status in WordPress > 4.0
27. query_vars filter not working even though query string parameter is present
28. Return Taxonomy/Term Information with Posts (WP_Query/get_posts)
29. Clean up WordPress code that repeats
30. Inserting Category programmatically
31. How to get all unique categories for posts in loop?
32. How do I run through a WordPress loop called from a filter function?
33. How to optimize multiple WP_Query() calls on one page?
34. Use post object from first query in second query
35. Order by title without taking into account ‘the’
36. How can I filter by slug depending on language selection
37. wp_query ‘s’, search filter with pagination is not working
38. Display Featured Post by Categories and Avoid duplicated posts
39. Cluster WooCommerce products in each Category Archive by Tags assigned to products
40. Category applied to pages, creates multiple breadcrumb entries after a search query (On the translated site)
41. Get authors by term id or slug
42. How to filter, restrict and return posts based on custom user meta information
43. category query for pages not working
44. Bypass “supress_filters” in WP Query
45. Can we return all category (not post) with Custom Query Filter? [closed]
46. How to use the query hook/filter?
47. Query to get siblings and parent page
48. Filter posts in category archive page by year using a dropdown
49. How to list custom fields as headers and list all pages sharing that custom field under it?
50. Display filtered results into custom page
51. Query posts intersecting tags and categories
52. Cutom wp_query for geolocation search, pagination not working
53. How to organize custom categories for filtering and selecting
54. Query posts from category A, and from either category B or C
55. Search Query for multiple categories using ‘OR’ but having certain categories be ‘AND’
56. How to order posts by title after they have already been sorted by category
57. Applying posts_clauses filter to specific queries only
58. Combining categories (Query posts with multiple taxonomy terms)
59. Check if loop has any categories?
60. Add class to first post in custom loop using post_class filter
61. Filtering out child category posts from parent category archive not working
62. WordPress query with items from more than one selfdefined taxonomy as `term` argument
63. WP_Query with different postmeta filter for each categories
64. Exclude Category filter from Portfolio section
65. Slow WP_Query with ‘OR’ on meta_query
66. Include data from custom table in WP_Query
67. Add posts to WP Query object
68. echo a specific meta_key queried through a custom post
69. WP Group posts by year(desc) > month(desc) > date(asc)
70. How to alter local query, not main query [duplicate]
71. How to filter a query by date in a shortcode?
72. How can I allow sticky posts but cap the query to 1 post?
73. Inserting HTML to close and open divs in WP_Query loops
74. how to access query string in wordpress?
75. Limiting number of related posts
76. Taxonomy order exception for specific term
77. Category ‘pad_counts’ & ‘parent’ conflict
78. Finding WordPress Posts assigned to multiple categories
79. Changing the default wp_search_stopwords
80. Combine results of multiple WP_Query to resemble single WP_Query
81. How to make the ‘delete’ button inactive on some categories?
82. Filter post query to only show direct children of category
83. WordPress Custom Search Form Displaying Unexpected Results
84. Get posts from multiple tax terms
85. How to Order a list of taxonomies? orderby?
86. get_the_terms – but only show 4 Posts
87. Is it possible to add an argument to a custom function added to a filter hook?
88. How to make posts unqueryable/unpublish posts where ACF relationship field is an unpublished post? [closed]
89. Count posts per taxonomy else change taxonomy if less than x number
90. How to add custom meta to ‘pre_get_terms’?
91. get term id from term name
92. WP_Query to output chosen term and posts with no term assigned
93. wp_query is showing posts from other categories
94. WP Job Manager plugin – Listing only the twelve job categories on frontpage order by jobs they have
95. Change AJAX filter from POST to GET for URL Parameters
96. WP_Query Taxonomy categories filtering
97. Using post_where filter only on main query NOT sidebard new WP_Query
98. Filtering posts by archive showing all years
99. Hide products in uncategorized category from search results
100. How to order posts on each different category?