Get Current Custom Taxonomy ID by Post ID

Question

If I know the current post id that i have in the variable $pid

I use $terms = get_the_terms($pid, 'custom_category');

How do I get just the term id/term_taxonomy_id

if I var_dump $terms I see what I want...but I have no idea how the heck to return just the id, not an array, just the id.

Bare in mind...I less than 1/2 know what I'm doing...just face rolling keyboard to get what I want...but learning more everyday.

Cheers,

Brian

Answer 1

(Probably better to use get_the_terms).

$terms =  wp_get_object_terms( $pid, 'custom_category', array('fields'=>'ids'))

Get an array of term ids (will always been array, even if it is an array of one):

$ids = wp_list_pluck( $terms, 'term_id' );

If you just want one id... then 'pop' out the last id:

 $id = array_pop($ids)

Answer 2

try this code for getting category id from post id.

$categories = get_the_category( $post_id );