Output taxonomy array as comma-separated integers for query

• AustinDW

• January 12, 2020 at 7:57 pm

I am completely stumped and wanted to reach out to see if anyone can point me in the right direction.

I am using a Taxonomy field on an options page (set to return Term ID) to select categories on which content from a text field will appear. I wanted them to be able to choose more than one category, and return those values as a comma-separated integer array.

Using this

$show_post_footer_categories = get_field('show_post_footer_categories','blog-settings');
print_r($show_post_footer_categories);

I was able to get this:
Array ( [0] => 3 [1] => 5 [2] => 9 )

But I need it to return something like this…

3,5,9

For this…

if(in_category('3,5,9'))

Anyone able to help out a very tired front-end developer?

• John Huebner

• January 13, 2020 at 11:06 pm

echo implode(', ', $show_post_footer_categories);