| 1 | <?php |
||
| 16 | abstract class AbstractIterator implements Iterator |
||
| 17 | { |
||
| 18 | /** |
||
| 19 | * Queue of elements to be iterated |
||
| 20 | * |
||
| 21 | * @var array |
||
| 22 | */ |
||
| 23 | protected $queue = []; |
||
| 24 | |||
| 25 | /** |
||
| 26 | * Total number of elements in queue |
||
| 27 | * |
||
| 28 | * @var int |
||
| 29 | */ |
||
| 30 | protected $total = 0; |
||
| 31 | |||
| 32 | /** |
||
| 33 | * Cursor position |
||
| 34 | * |
||
| 35 | * @var int |
||
| 36 | */ |
||
| 37 | protected $iterated = 0; |
||
| 38 | |||
| 39 | /** |
||
| 40 | * Return the current element |
||
| 41 | * |
||
| 42 | * @return mixed |
||
| 43 | */ |
||
| 44 | 3 | public function current() |
|
| 48 | |||
| 49 | /** |
||
| 50 | * Move forward to next element |
||
| 51 | * |
||
| 52 | * @return void |
||
| 53 | */ |
||
| 54 | 10 | public function next(): void |
|
| 58 | |||
| 59 | /** |
||
| 60 | * Return the key of the current element |
||
| 61 | * |
||
| 62 | * @return string |
||
| 63 | */ |
||
| 64 | 7 | public function key(): string |
|
| 68 | |||
| 69 | /** |
||
| 70 | * Checks if current position is valid |
||
| 71 | * |
||
| 72 | * @return bool |
||
| 73 | */ |
||
| 74 | 6 | public function valid(): bool |
|
| 78 | |||
| 79 | /** |
||
| 80 | * Rewind the Iterator to the first element |
||
| 81 | * |
||
| 82 | * @return void |
||
| 83 | */ |
||
| 84 | 2 | public function rewind(): void |
|
| 88 | } |
||
| 89 |