1 | <?php |
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22 | class AttachmentPanel extends AbstractModifier |
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23 | { |
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24 | /** |
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25 | * @var ArrayManager |
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26 | */ |
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27 | private $arrayManager; |
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28 | |||
29 | /** |
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30 | * @var array |
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31 | */ |
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32 | private $meta = []; |
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33 | |||
34 | /** |
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35 | * @param ArrayManager $arrayManager |
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36 | */ |
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37 | public function __construct(ArrayManager $arrayManager) |
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41 | |||
42 | /** |
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43 | * @param array $data |
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44 | * @return array $data |
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45 | */ |
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46 | public function modifyData(array $data) : array |
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50 | |||
51 | /** |
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52 | * @param array $meta |
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53 | * @return array $meta |
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54 | */ |
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55 | public function modifyMeta(array $meta) : array |
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72 | } |
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73 |
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArray
is initialized the first time when the foreach loop is entered. You can also see that the value of thebar
key is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.