Raxos

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NumberArrayList ​

Raxos\Collection\NumberArrayList is an ArrayList that accepts integers or floats. It implements ValidatedArrayListInterface and adds a sum helper.

php
class NumberArrayList extends ArrayList implements ValidatedArrayListInterface

Methods ​

sum ​

php
public function sum(): float|int

Returns the sum of all items as a float or int.

validateItem ​

php
public static function validateItem(mixed $item): void

Throws a CollectionInvalidTypeException when the item is neither an int nor a float. This runs for every item when the list is built through of().

Example ​

php
<?php
declare(strict_types=1);

use Raxos\Collection\NumberArrayList;

$prices = NumberArrayList::of([9.99, 4, 2.5]);

$prices->sum(); // 16.49

See also the typed lists concept page.