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