How to remove duplicate values from an associative array based on a specific value?

Question

I have an array that looks just like that:

array(3) { [\"fk_article_id\"]=> string(1) \"4\" [\"first_name\"]=> string(6) \"Ulrike\" [\"last_name\"]=>         


        

Answer 1

One way would be to iterate over the array, copying ownly the first instance of each fk_article_id in a new array.