| 1 | <?php |
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| 7 | trait DateTrait |
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| 8 | { |
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| 9 | /** |
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| 10 | * @var \DateTimeImmutable|null |
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| 11 | */ |
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| 12 | private $value; |
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| 13 | |||
| 14 | private function __construct(\DateTimeImmutable $value = null) |
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| 18 | |||
| 19 | /** |
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| 20 | * @param \DateTimeImmutable $value |
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| 21 | * |
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| 22 | * @return DateTrait|static |
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| 23 | */ |
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| 24 | public static function create(\DateTimeImmutable $value): self |
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| 28 | |||
| 29 | /** |
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| 30 | * @return DateTrait|static |
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| 31 | */ |
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| 32 | public static function zero(): self |
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| 36 | |||
| 37 | /** |
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| 38 | * @param string|null $date |
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| 39 | * |
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| 40 | * @return DateTrait|static |
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| 41 | */ |
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| 42 | public static function fromString(string $date = null): self |
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| 50 | |||
| 51 | public function asString() |
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| 59 | |||
| 60 | } |
In PHP traits cannot be used for type-hinting as they do not define a well-defined structure. This is because any class that uses a trait can rename that trait’s methods.
If you would like to return an object that has a guaranteed set of methods, you could create a companion interface that lists these methods explicitly.