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so, if you are using the original function code, why did you remove the use of the ... splat operator?

assuming the function code already exists and you don't want to change it, you can use php's splat ... operator to call the function with an array of values that will get expanded into the individual input parameters. $gift_fields = [77, 80, 65, 66, 67, 83, 74, 87, 88, 90, 92]; $params = []; foreach($gift_fields as $field) { $params[] = $form_data['field'][$field]; } echo SpecificGifts(...$params); if you rewrite the function code to accept and operate on elements of a single array input parameter, you would change the last line to - echo SpecificGifts($params);

how are those array indexes 77, 80, ... determined, is that all the possible index values or just a sub-set of them, and what does the function code do with the input parameters? ideally, you would supply one array input parameter, with elements that are the set of input values. just based on the posted information, I would make an array of the index values, then loop to build the one array of inputs, then call the function with that array.