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

foreach($array as $key => $value){
    if(!in_array( $array[$key]['fk_article_id'], $usedValues)){
        $usedValues = $array[$key]['fk_article_id'];
        $cleanArray = $array[$key];
    }
}

something along thoose lines should do it, i don't think there is an pre existing array funciton for that