Online PHP editor | refs for AWbAp

<?php /** * Behaves like a PHP array (unstructured) */ class Bag implements IteratorAggregate, ArrayAccess { private $__data; // Implementation for ArrayAccess public function offsetSet($offset, $value) { if (is_null($offset)) { $this->__data[] = value; } else { $this->__data[$offset] = $value; } } public function offsetExists($offset) { return isset($this->__data[$offset]); } public function offsetUnset($offset) { unset($this->__data[$offset]); } public function offsetGet($offset) { return isset($this->__data[$offset]) ? $this->__data[$offset] : null; } // Implementation for IteratorAggregate public function getIterator() { return new ArrayIterator($this->__data); } public function __construct(array $data) { $this->__data = $data; } public function some(Closure $fn) { return new Bag(array_reduce($this->__data, function ($carry, $x) { return $fn($x) || $carry; }, false)); } public function every(Closure $fn) { return new Bag(array_reduce($this->__data, function ($carry, $x) { return $fn($x) && $carry; }, true)); } public function reduce(Closure $fn) { return new Bag(array_reduce($this->__data, $fn)); } public function map(Closure $fn) { return new Bag(array_map($fn, $this->__data)); } public function filter(Closure $fn) { return new Bag(array_filter($this->__data, $fn)); } } $bag = new Bag([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); print_r($bag); print_r($bag->filter(function ($x) { return !($x % 2); }));