What is the use of a custom taxonomy?

Taxonomy

Essentially, a taxonomy is a way of classifying data. Typically a taxonomy will have a set of characteristics that is unique to it.

In WordPress by default it has four taxonomies, post tag, categories, link categories,Post Formats. To be obvious, if a taxonomy had the same characteristics as another data type, it wouldn’t be a different taxonomy! Example of those characteristics follow:

  • Post Tag: acts like a label, attached to a post.
  • Category: acts like a “bucket” in which we put posts, are often hierarchical. Posts can live in multiple categories.
  • Link Category: acts like a label, attached to a link.
  • Post Formats: data represent of a post and can be used by theme.

Official Documentation
https://codex.wordpress.org/Taxonomies

https://github.com/WordPress/WordPress/blob/master/wp-includes/taxonomy.php#L24-L150

Related Posts:

  1. Advanced search form with filters for custom taxonomies and custom fields
  2. Show Custom Taxonomy Inside Custom Menu
  3. Getting the Intersection of Two Custom Taxonomy Terms for a Custom Post Type?
  4. Why does my custom taxonomy show a total count across all post types
  5. Custom Taxonomy’s Label to change the text appearing in Appearance > Menu
  6. Why does a custom post type need the ”hierarchical’ args setting?
  7. Permalink rewrite with custom post type and custom taxonomy
  8. Custom Post Type with Nested Taxonomy and Template Files
  9. Should unaltered default loop/query return a list of custom posts belonging to a custom taxonomy?
  10. 404 error PageNavi custom type taxonomy | wordpress
  11. Custom Post Types – Titles as Taxonomies
  12. Creating a function that receives the taxonomy terms that have been changed in a custom post type
  13. Query for posts in 2 taxonomies
  14. Using pre_get_posts to Filter Posts
  15. Custom post types – show specific posts
  16. Query for custom post type objects in a taxonomy and with a meta value
  17. Get post type from taxonomy or category page
  18. get_categories() for only CPT
  19. custom taxonomy archive by year
  20. Add nonexisting pages to navigation
  21. get_template_part for each level of taxonomy term
  22. Displaying a custom post types custom taxonomy value?
  23. custom permalinks based on taxonomies for custom post type
  24. Update post terms with custom taxonomy
  25. What template files do I need to customise custom-category-term-links rather than fall back on archive.php?
  26. Get custom post type list for every category shortcode
  27. Custom Post Type Taxonomy Filters
  28. How do I associate a custom post type with another through a taxonomy or storing an ID in a custom field?
  29. Get related posts of child term of custom post type
  30. Filter term taxonomy metabox in custom post type
  31. Show custom post archive when custom post not specified
  32. Show custom post type relationships by taxonomy
  33. Filter CPT posts by one or more categories
  34. Custom Post, set object Taxonomy terms in plugin
  35. Hierarchy and access control for Custom Post Types (CPT)
  36. Best method to make posts searchable, sortable and filterable – custom field, tag or category?
  37. Custom post with more than one custom taxonomy
  38. Different Category system needed for the Custom Post Type
  39. single-{post_type}.php not working
  40. Template to list categories in custom taxonomy
  41. WordPress wp_query() basic question about args
  42. How to add current custom taxonomy slug to body class
  43. Display different information of a custom post type
  44. How to define a term for custom taxonomy
  45. Exclude posts with custom taxonomy
  46. List custom taxonomy as navigation – taxonomy pages with all it’s posts?
  47. Dynamic CPT / Taxonomy
  48. How to approach a site where it has sub-businesses, each with its own pages (“articles”, “staff”)? Don’t want to use WP multisite
  49. How to rewrite custom taxonomy term archive to use THE SAME SLUG/front as CPT
  50. How to get the post terms from a child taxonomy
  51. display posts of custom post type with custom taxonomy
  52. Get custom term meta problem on single post type
  53. Creating custom post type posts and associating them with a post from another custom post type
  54. Custom Post Type View Button in Admin Gives 400 Error
  55. Custom Taxonomy Filter Issues
  56. how to organize my categories or should I do custom post types for some?
  57. How do i display post from a taxonomy term?
  58. Multiple permalinks for a single post with multiple taxonomies
  59. rewrite rules hierarchical
  60. either single-{custom}.php 404’s OR /taxonomy/ 404’s – custom post type and taxonomy permalinks
  61. Archive page of taxonomy returns a 404 error
  62. How do I set a post slug automatically based on taxonomy?
  63. Get a list of custom post type (property) when clicked on custom taxonomy 1 (rent or sale) from custom taxonomy 2 (city) page
  64. How to divide Subcategories into pages of parent category wordpress
  65. update custom taxonomy custom fields
  66. Filter taxonomy by CPT
  67. Display Posts that fit a certain criteria on Category pages
  68. How do I find out which (page) template file my custom child post is looking for?
  69. How to display “META” array in register_taxonomy
  70. If ACF Post Object post has custom taxonomy term…
  71. Customise Permalink Structure For Custom Post Types
  72. How to filter taxonomy of a custom post type and display it in the single post type page in the back end?
  73. Parent and child categories with their id in drop_down in CPT
  74. CPT/Taxonomy/Postname permalink structure makes pagination break
  75. Custom Taxonomy not working front side Woocommerce
  76. Custom post type post_type_link gives “page not found” on any other custom post type
  77. Exclude Posts in a Given Category
  78. I want to create an archive and single page for a custom taxonomy for a custom post type
  79. Taxonomy’s title
  80. Display all posts from single taxonomy term
  81. Front page url permalink
  82. Best way to use Category & Custom Fields?
  83. Heirarchical URLs with CPT and custom taxonomy
  84. Displaying taxonomies with manage_{custom-post-type}_posts_custom_column
  85. Plugin Error on activating
  86. How to change permalinks to taxonomy and post type’s posts
  87. Paginate custom taxonomy category with wp_custom_pagination
  88. Custom post type post taxonomies
  89. If taxonomy show class of active
  90. Custom Taxonomy Showing in WP Menu
  91. Storing/querying custom date data
  92. Custom Template Taxonomy
  93. Custom Post Type Permalinks Problem
  94. How to relate one custom post type to another custom post type
  95. Issue On Listing Woocommerce Parent Tag List
  96. Links in archive not including taxonomy parameter
  97. the_post_navigation in single page with multiple taxonomies
  98. Url rewrite with custom post type and taxonomy
  99. Custom Sort Order for Custom Post Type Taxonomy
  100. How to add categories to a custom post type using wp_insert_post($new_post);
techhipbettruvabetnorabahisbahis forumueduseduseduseduedusedueduseduedusedus