How do I determine if a category exists by ID?

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I know I can get a categories ID by calling get_cat_ID(‘category-slug’), however, what is the method to call to determine if a category exists by ID when you don’t know the slug?

In other words, I need to determine if category id 1 exists. What’s the function for this?

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Can I just use if(get_category(1)) {//do something?}

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2 comments

  2. take a look at get_term_by

    you can define by what you want to look for the term using slug,ID or name
    so you can call it like this in your case:

        function check_category_exists($catid){
       $cat_to_check = get_term_by( 'id', $catid, 'category')
       if ($cat_to_check){

       return true;
       }
       else{return false;}
    }

//then call it like this:
if (check_category_exists(1)){  //category exsits. }