How to define a term for custom taxonomy

A category is just a taxonomy. And taxonomies are made up of terms. You’ll need to set the post’s terms via wp_set_post_terms.

This should be fairly simple:

wp_set_post_terms( '42', array( 'term', 'terms', 'terms' ), 'q-categories' );

Related Posts:

  1. Custom Taxonomy as checkbox or dropdown
  2. Taxonomy: Why ‘with_front’ => false DOES NOT WORK?
  3. Custom Taxonomy as Dropdown in admin
  4. Custom Taxonomy’s Label to change the text appearing in Appearance > Menu
  5. How to completely disable a taxonomy archive on the frontend?
  6. How to limit the number of terms (terms acts like categories)
  7. How can I list all the categories under a Custom Post Type (taxonomy)?
  8. Retrieve single term slug
  9. How to show term-specific post list, without posts associated with child terms?
  10. Query multiple taxonomy in Custom Post Type
  11. Custom Post Type: How to display all of same taxonomy?
  12. Remove “-2” from a Toolset Types URL with the same post name
  13. Custom post type taxonomy template
  14. Is slug “type” reserved and can’t be used in taxonomy rewrite?
  15. Listing taxonomies from custom post type
  16. Remove Taxonomy Slug when No Taxonomy is Assigned to Custom Post Type?
  17. Taxonomy Templates
  18. Custom Post Type and Taxonomy combination
  19. Custom Taxonomy Creates Unwanted Integer Terms on Post Save
  20. How to check the terms in single custom post type template
  21. How can I move a custom taxonomy and its data from one post type to another?
  22. Query Multiple Taxominies Across Multiple Post type’s
  23. Custom Taxonomies not appearing in Admin
  24. Custom Post Type Taxonomy Filters
  25. Taxonomy custom post type URL
  26. Get related posts of child term of custom post type
  27. Limit amount of posts made within a custom taxonomy
  28. Issue on Creating Custom Tax Term Dynamically From Another CPT Meta-box On Publish
  29. list taxonomies from a custom post type
  30. How do I display the taxonomy for a custom post type in an array
  31. How do I check if the user is on a taxonomy term parent, child or grandchild page?
  32. Taxonomies relations
  33. Full Custom Post Type List Organised by two Taxonomies
  34. WordPress Doesn’t Generate Taxonomy Archive
  35. Suggested Post and Taxonomy structure
  36. Custom post with more than one custom taxonomy
  37. Get the taxonomy of a post hierarchically
  38. Adding custom taxonomy in same menu place with two custom post types
  39. How to get list of taxonomy slugs ordered parents>childs?
  40. Multiple tag cloud filtering
  41. Get url.com/post_type/taxonomy/term work!
  42. Different Category system needed for the Custom Post Type
  43. Custom Post Type Category Link
  44. Custom Post type category pages template and loop
  45. Rename a slug label
  46. Custom taxonomy (categories) on custom post type return no results
  47. How can I create an automatic drop down menu with my tags?
  48. List custom taxonomy as navigation – taxonomy pages with all it’s posts?
  49. Rewrite custom post type with taxonomy
  50. WordPress multisite – is it possible to have different taxonomies for each site?
  51. My custom taxonomy is only displaying 1 of 3 terms
  52. Query custom post types & Taxonomies and list them in a table on a page
  53. How to show list of taxonomy terms associated with specific post?
  54. Creating custom post type posts and associating them with a post from another custom post type
  55. I have custom post type with custom taxonomy. But not found the taxonomy page..
  56. Group Custom post type in a taxonomy page by its child taxomony
  57. Custom Taxonomy Terms in Menu lead to which page?
  58. Getting List of child terms from custom taxonomy parent
  59. Custom taxonomy query showing more than 4 posts
  60. Using page title as a link to term archive
  61. How to display posttypes and taxonomy in standard posts, not in a separate label?
  62. “Menu order” being ignored when querying posts from a parent taxonomy with “include_children” set to true
  63. How to get post count of specific taxonomy that have store name & category
  64. Duplicate slug/permalink issue while adding same post name
  65. Get the taxonomy value in the post loop inside the archive page
  66. Filter taxonomy by CPT
  67. How to show related posts of category on post within custom posttype
  68. How to add CSS class field in Custom Taxonomy?
  69. WP_Query for custom taxonomies showing posts from non-specified terms?
  70. Get all posts for custom taxonomy term
  71. Listing all custom posts having a specific taxonomy whatever the terms
  72. How to manage a dynamic multi-level page hierearchy system?
  73. Display custom tax in “while” loop
  74. Categories manage
  75. tax_query not working?
  76. Showing taxonomies with terms that are attached to custom post
  77. Custom Taxonomy page redirecting to 404 page
  78. Changing an item in drop down after 5 latest posts per taxonomy
  79. I want to create an archive and single page for a custom taxonomy for a custom post type
  80. Taxonomy’s title
  81. Display all posts from single taxonomy term
  82. Connect 8 Taxonomies to One (Main) taxonomy. How to?
  83. Filter By Term Not Working – Custom Post Type
  84. Displaying WordPress posts from post and custom post type in custom taxonomy
  85. Custom post type taxonomy template and URL confusion
  86. Custom Taxonomy is disabled on Edit page
  87. Override “Parent” input for custom taxonomy
  88. Custom post type post taxonomies
  89. Connecting multiple post types? Or linking “News” posts with “Game” posts how?
  90. Sort by Custom Post Type (Multiple Loop)
  91. How to display elements of different post types?
  92. How to display only taxonomies of custom post type in a page?
  93. Check if taxonomy is attached to at least one post in a post-type
  94. Looping taxonomy in taxonomy?
  95. Custom posts and custom taxonomies for many products and categories?
  96. List custom taxonomy terms
  97. How do i get the taxonomy term name on the CPT archive page?
  98. Display associated taxonomy child name on single CPT page
  99. Issue On Listing Woocommerce Parent Tag List
  100. Show custom category archive as front page and remove taxonomy slug from urls