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- <?php
- namespace Org\Util;
- class Stack extends ArrayList {
-
- public function __construct($values = array()) {
- parent::__construct($values);
- }
-
- public function peek() {
- return reset($this->toArray());
- }
-
- public function push($value) {
- $this->add($value);
- return $value;
- }
- }
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