README

This is a native PHP implementation to add enumeration support to PHP >= 5.3. It's an abstract class that needs to be extended to use it.

Usage

Basics

use Dkd\Enumeration;

class MyEnumeration extends Enumeration
{
    // this is optional. The value will be used as default value if no value
    // is given.
    const __DEFAULT = self::INTEGER_VALUE;

    // all scalar datatypes are supported
    const INTEGER_VALUE = 1;
    const FLOAT_VALUE = 0.123;
    const STRING_VALUE = 'foo';
    const BOOLEAN_VALUE = true;
}

// Use the ```__DEFAULT``` value if defined. If not defined an exception
// is thrown.
$myEnumeration = MyEnumeration();

$myEnumeration = new MyEnumeration(MyEnumeration::INTEGER_VALUE);

// cast does automatically cast the given value to the enumeration value.
$myEnumeration = MyEnumeration::cast(MyEnumeration::INTEGER_VALUE);
$myEnumeration = MyEnumeration::cast($myEnumeration);
$myEnumeration = MyEnumeration::cast($databaseResult['my_column']);

// get all possible values of the enumeration.
$possibleValues = MyEnumeration::getConstants();

$myEnumeration = new MyEnumeration(MyEnumeration::INTEGER_VALUE);
$myEnumeration->equals(1); // TRUE
$myEnumeration->equals($myEnumeration); // TRUE
$myEnumeration->equals(0.123); // FALSE
$myEnumeration->equals('foo'); // FALSE
$myEnumeration->equals(new MyEnumeration('foo')); // FALSE

Why not SplEnum

• SplEnum is not build-in into PHP and requires pecl extension installed.

Install

Composer

Add dkd/enumeration to the project's composer.json dependencies and run php composer.phar install

GIT

git clone git://github.com/dkd/enumeration.git

ZIP / TAR

Download the last version from Github and extract it.

License

This code is also part of the TYPO3 CMS project and has been extracted to this package. See LICENSE for details.