| 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: