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<?php
declare(strict_types=1);
namespace Yiisoft\Db\TestSupport;
/**
* TraversableObject
*
* Object that implements `\Traversable` and `\Countable`, but counting throws an exception;
* Used for testing support for traversable objects instead of arrays.
*/
class TraversableObject implements \Iterator, \Countable
{
protected array $data = [];
private int $position = 0;
public function __construct(array $array)
$this->data = $array;
}
* @throws \Exception
#[\ReturnTypeWillChange]
public function count()
throw new \Exception('Count called on object that should only be traversed.');
public function current()
return $this->data[$this->position];
public function next()
$this->position++;
public function key()
return $this->position;
public function valid()
return array_key_exists($this->position, $this->data);
public function rewind()
$this->position = 0;
yiisoft /
db
