Return all array elements except for a given key

Question

Simple one, I was just wondering if there is a clean and eloquent way of returning all values from an associative array that do not match a given key(s)?

$array          


        

Answer 1

There have been a few discussions about speed when using in_array. From what I've read, including this comment1, using isset is faster than in_array.

In that case your code would be:

function arrayExclude($array, array $excludeKeys){

    $return = [];

    foreach($array as $key => $value){
        if(!isset($excludeKeys[$key])){
            $return[$key] = $value;
        }
    }
    return $return;
}

That would be slightly faster, and may help in the event that you're needing to process large datasets.