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<?php
/**
* This file is part of the ramsey/collection library
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
* @copyright Copyright (c) Ben Ramsey <[email protected]>
* @license http://opensource.org/licenses/MIT MIT
* @link https://benramsey.com/projects/ramsey-collection/ Documentation
* @link https://packagist.org/packages/ramsey/collection Packagist
* @link https://github.com/ramsey/collection GitHub
*/
namespace Ramsey\Collection;
* This class contains the logic to make a Collection to not allow duplicated values,
* to minimize the effort required to implement this specific type of Collection.
abstract class AbstractSet extends AbstractCollection
{
* Adds the specified element to this set if it is not already present (optional operation).
* @param mixed $element
* @return bool true if this set did not already contain the specified element
public function add($element)
if ($this->contains($element)) {
return false;
}
return parent::add($element);
public function offsetSet($offset, $value)
if ($this->contains($value)) {
return;
parent::offsetSet($offset, $value);
ramsey /
collection
