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1 | <?php |
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2 | |||
3 | use Illuminate\Support\Collection; |
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4 | |||
5 | /* |
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6 | * Map a collection, then filter the results. |
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7 | * |
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8 | * @param callable $callback |
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9 | * |
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10 | * @return \Illuminate\Support\Collection |
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11 | */ |
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12 | Collection::macro('filterMap', function (callable $callback): Collection { |
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13 | return $this->map($callback)->filter(); |
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14 | }); |
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15 |
This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.