| 1 | <?php |
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| 10 | class Collection implements \Iterator, \Countable { |
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| 11 | |||
| 12 | protected $collection = []; |
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| 13 | |||
| 14 | /** |
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| 15 | * Add item to collection |
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| 16 | * |
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| 17 | * @param mixed $item |
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| 18 | */ |
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| 19 | 4 | public function add($item) { |
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| 22 | |||
| 23 | /** |
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| 24 | * Return the current item |
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| 25 | * |
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| 26 | * @return false|mixed Item |
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| 27 | */ |
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| 28 | 1 | public function current() { |
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| 29 | 1 | $item = current($this->collection); |
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| 30 | |||
| 31 | 1 | return $item; |
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| 32 | } |
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| 33 | |||
| 34 | /** |
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| 35 | * Return the key of the current item |
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| 36 | * |
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| 37 | * @return mixed scalar on success, or null on failure. |
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| 38 | */ |
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| 39 | 1 | public function key() { |
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| 40 | 1 | $key = key($this->collection); |
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| 41 | |||
| 42 | 1 | return $key; |
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| 43 | } |
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| 44 | |||
| 45 | /** |
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| 46 | * Move forward to next item |
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| 47 | */ |
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| 48 | 3 | public function next() { |
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| 51 | |||
| 52 | /** |
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| 53 | * Rewind the collection to the first item |
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| 54 | */ |
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| 55 | 2 | public function rewind() { |
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| 60 | |||
| 61 | /** |
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| 62 | * Checks if current position is valid |
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| 63 | * |
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| 64 | * @return bool Returns true on success or false on failure. |
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| 65 | */ |
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| 66 | 1 | public function valid() { |
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| 72 | |||
| 73 | /** |
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| 74 | * Count elements of items in collection |
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| 75 | * |
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| 76 | * @return int Count |
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| 77 | */ |
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| 78 | 1 | public function count() { |
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| 83 | } |
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| 84 |