安裝

composer require fangx/php-enum

創建

使用 ./vendor/bin/enum 命令創建一個枚舉類.

./vendor/bin/enum FooEnum --enum="1=foo" --enum="b=bar" --path=Enums

該命令默認在 當前目錄的 Enums 目錄下創建一個 FooEnum.php 文件. 文件內容如下:

<?phpnamespace Enums;use FangxEnumAbstractEnum;class FooEnum extends AbstractEnum{     const FOO = "f", __FOO = "foo";     const BAR = "b", __BAR = "bar";}

使用

枚舉類默認繼承 FangxEnumAbstractEnum. 可以靜態調用以下方法:

• toArray(Format $format = null, Filter $filter = null)
• toJson(Format $format = null, Filter $filter = null)
• desc($key, $default = 'Undefined')

獲取所有的枚舉值

<?phpclass FooEnum extends FangxEnumAbstractEnum{     const FOO = 'f', __FOO = 'foo';     const BAR = 'b', __BAR = 'bar';}/**  * ['f' => 'foo', 'b' => 'bar']  */FooEnum::toArray();

獲取枚舉值的描述信息

<?phpclass FooEnum extends FangxEnumAbstractEnum{     const FOO = 'f', __FOO = 'foo';     const BAR = 'b', __BAR = 'bar';}/**  * "foo"  */FooEnum::desc('f');/**  * "bar"  */FooEnum::desc(FooEnum::BAR);

使用格式來約束返回值

<?phpclass FooFormat implements FangxEnumContractsFormat{     public function parse(FangxEnumContractsDefinition $definition): array     {         return [['key' => $definition->getKey() , 'value' => $definition->getValue()]];     }}class FooEnum extends FangxEnumAbstractEnum{     const FOO = 'f', __FOO = 'foo';     const BAR = 'b', __BAR = 'bar';}/**  * [['key' => 'f', 'value' => 'foo'], ['key' => 'b', 'value' => 'bar'],]  */$format = new FooFormat();FooEnum::toArray($format);

通過規則來過來過濾枚舉值.

class FooFilter implements FangxEnumContractsFilter{     public function __invoke(FangxEnumContractsDefinition $definition)     {         return $definition->getKey() === 'f';     }}/**  * ['f' => 'foo']  */$filter = new FooFilter();FooEnum::toArray(null, $filter);

使用自定義的集合來作為所有的枚舉類型, 其他使用方法與 FooEnum 一致.

<?phpclass BarEnum extends FangxEnumAbstractEnum{     public function all()     {         return [             new FangxEnumDefinition('f', 'foo'),             new FangxEnumDefinition('b', 'bar'),         ];     }}

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