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Example code of litgroup/enumerable

Informations about the package enumerable

Enumerable

Library provides support of enumerable classes for PHP.

Version Dev Version Downloads License Build Status

Installation

Install via composer:

Example of usage

Definition

  1. Create final class, which extends Enumerable;
  2. For each variant of values create a static method, which will creates an instance of value. For this purpose your method must call Enumerable::createEnum() with some index of value.

Note:

  • Enumerable class must be final!
  • Index can be of type string or int.

Enum definition example:

Equality/Identity checking

You can use enumerable values in equality/identity expressions:

Note: Enumerables works as runtime constants. Therefor enumerable values can be checked on identity. And we recommend to use check on identity (===) instesd of equality (==) if possible.

Usage in switch-case statement

Serialization and Persistence

Enumerable works as runtime-constant. Enumerable type cannot be serialized. If you need to store representation of enumerable in a database or send it via an API you can use index of enumerable value as representation.

To restore an instance of enumerable type by index from database or from API-request you can use static method getValueOf() on the concrete enum-class.

If you need to get all values of enumerable type, use static method getValues() on the concrete enum-class.

Extensibility

Instances of your enumerable classes can have additional behaviour if it needed. But you cannot define any public static methods with behaviour. Public static methods used only for creation of values.

Note: You cannot define any public static methods with behaviour. Public static methods used only for creation of values.

Example:

Run tests

LICENSE

See LICENSE file.

All versions of enumerable with dependencies

PHP Build Version
Package Version
Requires php Version ^7.3 || ^8.0
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