Remove all key from array php

How to remove keys in subarray php

print_r(deep_delete_keys($arr,'country'));

function deep_delete_keys($arr, $keys) {
    if (!is_array($keys)) $keys = array($keys);
    $filteredArr = array_diff_key( $arr, array_flip( $keys ) );
    foreach ($filteredArr as &$val) {
        if (is_array($val)) {
            $val = deep_delete_keys($val, $keys);
        }
    }
    return $filteredArr;
}

Source: grepper.com

PHP - Elegant way of removing values from Associative Arrays based on a key value duplication

return array_intersect_key($results, array_unique(array_column($results, 'nid')));

Source: grepper.com

PHP - Elegant way of removing values from Associative Arrays based on a key value duplication

$filtered_results = array_combine(array_column($results, 'nid'), $results);

Source: grepper.com

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