1 | <?php |
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5 | trait InternalIteratorTrait |
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6 | { |
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7 | /** |
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8 | * @var \Iterator |
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9 | */ |
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10 | protected $iterator; |
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11 | |||
12 | /** |
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13 | * Return the current element. |
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14 | * |
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15 | * @link http://php.net/manual/en/iterator.current.php |
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16 | * |
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17 | * @return mixed Can return any type. |
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18 | * |
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19 | * @since 5.0.0 |
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20 | */ |
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21 | public function current() |
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25 | |||
26 | /** |
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27 | * Move forward to next element. |
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28 | * |
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29 | * @link http://php.net/manual/en/iterator.next.php |
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30 | * @since 5.0.0 |
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31 | */ |
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32 | public function next() |
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36 | |||
37 | /** |
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38 | * Return the key of the current element. |
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39 | * |
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40 | * @link http://php.net/manual/en/iterator.key.php |
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41 | * |
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42 | * @return mixed scalar on success, or null on failure. |
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43 | * |
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44 | * @since 5.0.0 |
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45 | */ |
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46 | public function key() |
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50 | |||
51 | /** |
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52 | * Checks if current position is valid. |
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53 | * |
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54 | * @link http://php.net/manual/en/iterator.valid.php |
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55 | * |
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56 | * @return bool The return value will be casted to boolean and then evaluated. |
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57 | * Returns true on success or false on failure. |
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58 | * |
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59 | * @since 5.0.0 |
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60 | */ |
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61 | public function valid() |
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65 | |||
66 | /** |
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67 | * Rewind the Iterator to the first element. |
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68 | * |
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69 | * @link http://php.net/manual/en/iterator.rewind.php |
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70 | * @since 5.0.0 |
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71 | */ |
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72 | public function rewind() |
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79 | } |
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80 |