I want to retrieve a list of term Ids based on the current category ID.
At the moment I'm using the following code:
$product_cat_items = get_queried_object();
$product_cat_id = $product_cat_items->term_id;
$product_cat_child = get_term($product_cat_id, 'product_cat');
$product_cat_parent = $product_cat_child->parent;
$product_cat_related= get_terms('product_cat', array( 'parent' => $product_cat_parent, 'exclude' => $product_cat_id ));
It's working and I get an array of the terms. But the probem is, that I only need the IDs from the term object to get a list like this:
123,345,678
Is there any way to extract such a list from the $product_cat_related array?
This is the current output:
array(2) {
[0]=>
object(WP_Term)#26238 (10) {
["term_id"]=>
int(177)
["name"]=>
string(27) "Name"
["slug"]=>
string(21) "name"
["term_group"]=>
int(0)
["term_taxonomy_id"]=>
int(177)
["taxonomy"]=>
string(11) "product_cat"
["description"]=>
string(0) ""
["parent"]=>
int(140)
["count"]=>
int(8)
["filter"]=>
string(3) "raw"
}
[1]=> ....
}
Since WordPress version 4.5.0, taxonomies should be passed via the "taxonomy" argument in the $args array (see get_terms() documentation).
Also get_queried_object() already gives a WP_Term Object when the queried Object is a taxonomy term.
Also you can use 'fields' => 'ids' as an argument in get_terms(), to get only an array of term Ids instead of an array of WP_term Objects (see WP_Term_Query available arguments).
To finish, you will use PHP implode() to get a string of coma separated terms Ids.
So your code will be instead:
$current_term = get_queried_object(); // Already a WP_Term Object
if ( $current_term->parent > 0 ) {
$siblings_ids = get_terms( array(
'taxonomy' => 'product_cat',
'parent' => $current_term->parent,
'exclude' => $current_term->term_id,
'fields' => 'ids',
) );
// Get a string of coma separated terms Ids
$siblings_list_ids = implode(',', $siblings_ids);
// Testing output
echo $siblings_list_ids;
}
Tested and works.
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