1 | <?php |
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23 | trait IndexAwareTrait |
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24 | { |
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25 | |||
26 | private $index = ''; |
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27 | |||
28 | /** |
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29 | * Get currently used index |
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30 | * @return string |
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31 | */ |
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32 | 1 | public function getIndex() |
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40 | |||
41 | /** |
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42 | * Set currently used index |
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43 | * @param string $index |
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44 | * @return static |
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45 | */ |
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46 | 1 | public function setIndex($index) |
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55 | |||
56 | } |
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57 |
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: