1 | <?php |
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26 | class IndexAnnotation extends ManganPropertyAnnotation |
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27 | { |
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28 | |||
29 | const Ns = __NAMESPACE__; |
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30 | |||
31 | public $value; |
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32 | |||
33 | /** |
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34 | * This can be either: |
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35 | * |
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36 | * * Empty - for simple ascending index |
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37 | * * `Sort::SortAsc` - for simple ascending index |
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38 | * * `Sort::SortDesc` - for simple descending index |
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39 | * * `array` - for any other keys specification |
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40 | * |
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41 | * @var mixed |
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42 | */ |
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43 | public $keys; |
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44 | public $options; |
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45 | |||
46 | public function init() |
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73 | |||
74 | } |
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75 |
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.