enum's Introduction

Enum

Library for enumerate objects

Simple use

Create enum class with constants:

class MyEnum extends Enum {
    const CONSTANT_A = 'value_a';
    const CONSTANT_B = 'value_b';
}

Use it as object or as scalar:

$enumObject = MyEnum::getInstance(MyEnum::CONSTANT_A);
echo $enumObject->getValue(); // prints 'value_a'
echo $enumObject;             // also prints 'value_a'

Validate enum by passing whole object instead of scalar:

function someFunction(MyEnum $enumObject): void
{
    // ...
}

$enumObject = MyEnum::getInstance(MyEnum::CONSTANT_A);
someFunction($enumObject);

Compare instances:

function compareFunction(MyEnum $firstEnumObject, MyEnum $secondEnumObject): bool
{
    return $firstEnumObject === $secondEnumObject       // both variants
        || $firstEnumObject->equals($secondEnumObject)  // are identical
}

Get enum instances via magic static call

/**
 * @method static self valueA()
 * @method static self valueB()
 */
class MyEnum extends Enum {
    use MagicStaticCallEnum; // use MagicStaticCallEnum trait

    const CONSTANT_A = 'value_a';
    const CONSTANT_B = 'value_b';
}

$enumObject = MyEnum::valueA(); // instead of MyEnum::getInstance(MyEnum::CONSTANT_A)

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