how to get category name if my category got custom slug

Question

so my category got slug 'aeroplanes' and I need to get category names from it, but I can't get it with

$category = get_the_category($post->ID); 
echo $category[0]->cat_name;

cause it takes all posts from default category with category slug 'category'. How can I do that if I got category slug 'aerpolanes'?

Answer 1

See http://codex.wordpress.org/Function_Reference/get_term_by

The following code will work for your situation:

$cat = get_term_by( 'slug', 'aeroplane', 'category');
echo $cat->name;