| 1 | <?php |
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| 5 | trait IterableImplementation |
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| 6 | { |
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| 7 | protected $position = 0; |
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| 8 | |||
| 9 | public function offsetGet($offset) |
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| 13 | |||
| 14 | public function offsetSet($offset, $value) |
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| 24 | |||
| 25 | public function offsetExists($offset) |
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| 29 | |||
| 30 | public function offsetUnset($offset) |
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| 34 | |||
| 35 | public function next() |
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| 39 | |||
| 40 | public function key() |
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| 44 | |||
| 45 | public function valid() |
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| 49 | |||
| 50 | public function rewind() |
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| 54 | |||
| 55 | public function count(): int |
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| 59 | } |
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| 60 |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: