Firstly, this isn’t a WordPress error. It’s a PHP error. WordPress is not going to return type errors. That all happens and the language level. If you used the same values outside of WordPress you’d get the same error.
Regarding your specific issue, keep in mind that get_terms() will return a WP_Error object if the taxonomy is invalid or if your code is run before the taxonomy is registered. That’s most likely what’s happening here.
Related Posts:
- Tax query with multiple terms in pre_get_posts
- What is ‘term_group’ for ‘order_by’ in get_terms()?
- Order get_terms by term meta
- Display all the subcategories from a specific category?
- Get parent id by term id
- How to get_term_children output in alphabetical order?
- When to / not to use wp_get_post_terms vs get_the_terms?
- Why does WordPress combine a term with the same name in the wp_terms table?
- Correct use of get_the_terms()
- Get multiple term IDs by slug, and then exclude them in get_terms
- wp_list_categories: order by term order?
- Child terms from multiple parents?
- I have a term_taxonomy_id — is there an API call to get the taxonomy?
- Exclude Child Terms From Parent Posts
- same taxonomy for several post types: how to hide empty in a specific post type?
- How to sort terms with diacritical signs?
- wp_set_object_terms creates relationship to REVISION?
- get_terms(); show private posts when logged in
- Get category ID after wp_insert_term
- How do I access a single term from a post?
- Prevent Selected Terms Rising to the Top
- array_pop() expects array, boolean given for $event_type_term ->slug
- How to order get_term_children output by alphabetic order
- Get_term_by only returns one item from array
- How to update incorrect post count in taxonomy?
- Term begins with a letter
- get_post_terms not working as expected
- WP_insert_term how to insert multiple values as taxonomny term?
- wp_update_term not creating new unique slug
- has_term() does not return when term is assigned post?
- get_terms() but with additional dimensions?
- Wp set post terms not work
- how is it possible that using wp_insert_category throw a fatal error?
- How to Get All Taxonomies AND All Terms For Each Taxonomy With Post Count Zero
- Get Term names from WP Term Object
- get_terms only show term if there is a post using it
- Get post terms for multiple posts at once?
- wp_update_term: How could i update the “name”?
- Get the Term List – Ordering
- Reduce / optimize calling of wp_get_object_terms() when generating permalinks
- Check if an array of posts has posts from a specific category
- Sort a custom post type array numerically
- Get only one product category woocommerce
- How to trace/fix false $term->count, rogue term relationships?
- How to order and count get_terms by specific post type?
- Outputting an array of term meta values in a custom WooCommerce tab?
- Get those terms with a specific meta key value
- Check if term object is in array
- get_terms() order by term_meta
- Variable in Array Not Working
- Difference between get_category, get_term_by and get_categories
- get_terms() for custom taxonomy related to another taxonomy
- get_terms from registered taxonomies not working
- What is the term shortlink structure?
- get_term_by “name” not working with & in name
- I want to loop through Woocommerce Product Catogories and show them in dropdown
- Invalid argument supplied for foreach() in search.php
- setting taxonomy term to bulk posts using ids
- Do I have to set parent when set post term?
- How do I determine if a certain term is in an array?
- tax_query operator woes
- Modify automatically generation of slug when term is created
- Display custom taxonomy on single post
- get_terms ‘number’ parameter does not appear to work
- get_tags() return an empty array after added tags with wp_insert_term()
- Does get_terms() use any sort of caching on its query?
- Question with get_the_term_list
- Group child category IDs based on their parent category
- 404 on term taxonomy archive pagination only with some terms
- get a simple array of all of the term names that exist in all taxonomies
- Clone Terms of one taxonomy to another
- Custom Template for one Taxonomy Term
- Unset actions for terms parent only
- Get random out from get_terms()
- Create / Close Div in Array [closed]
- Conditional based on number of specific custom taxonomy terms in archive.php
- Categories order with get_terms_args not working in 4.7
- Getting all categories even with no products under it?
- Sticky posts per category
- Faceted search with WP-API data
- Show List of Terms (not posts) that have been Recently Updated?
- import_id parameter for wp_insert_term to create custom ID for category
- Programmatically add posts add and assign postmeta and assign terms
- When using the get_terms and trying to order the terms using the ‘order’ and/or ‘orderby’ does not work
- get_terms – name__like a number
- Query to get term id using post id?
- Why does wp_get_object_terms add a period after terms are output?
- Conditional Statement with Multiple Terms?
- How to apply comma separation,strip_tags and orderby to wp_get_object_terms
- How to get a post’s associated taxonomies and terms in wp api v2
- wp_set_post_terms is assigning only the last of several terms to a post
- wp_set_object_terms not working inside loop
- Leveled – Terms foreach
- Add Taxonomy Description with wp_set_post_terms
- get_the_terms() not returning expected result
- How can I access string value in an array?
- Add class to first post queried
- Get all terms linked to a post and include those who not connected from get_terms and sort
- wp_insert_post() does not support variable
- How to force acceptance of site terms on first login?