website/files/stripe/lib/Util/Set.php

45 lines
755 B
PHP

<?php
namespace Stripe\Util;
use IteratorAggregate;
use ArrayIterator;
class Set implements IteratorAggregate
{
private $_elts;
public function __construct($members = array())
{
$this->_elts = array();
foreach ($members as $item) {
$this->_elts[$item] = true;
}
}
public function includes($elt)
{
return isset($this->_elts[$elt]);
}
public function add($elt)
{
$this->_elts[$elt] = true;
}
public function discard($elt)
{
unset($this->_elts[$elt]);
}
public function toArray()
{
return array_keys($this->_elts);
}
public function getIterator()
{
return new ArrayIterator($this->toArray());
}
}