1 | <?php |
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9 | class PriceColumn extends DataColumn |
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10 | { |
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11 | /** |
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12 | * @var ShoppingCart |
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13 | */ |
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14 | public $cart; |
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15 | |||
16 | public $format = 'html'; |
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17 | |||
18 | public $contentOptions = ['style' => 'vertical-align: middle; white-space: nowrap;']; |
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19 | |||
20 | /** |
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21 | * @param CartPositionInterface $position |
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22 | * @param mixed $key |
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23 | * @param int $index |
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24 | * @return string |
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25 | */ |
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26 | public function getDataCellValue($position, $key, $index): string |
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38 | } |
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39 |
If you access a property on an interface, you most likely code against a concrete implementation of the interface.
Available Fixes
Adding an additional type check:
Changing the type hint: