SPL Types
PHP Manual

The SplEnum class

(No version information available, might only be in SVN)

Introduction

SplEnum gives the ability to emulate and create enumeration objects natively in PHP.

Class synopsis

SplEnum extends SplType {
/* Constants */
const NULL __default = null ;
/* Methods */
public array getConstList ([ bool $include_default = false ] )
/* Inherited methods */
SplType::__construct ([ mixed $initial_value [, bool $strict ]] )
}

Predefined Constants

SplEnum::__default

Examples

Example #1 SplEnum usage example

<?php
class Month extends SplEnum {
    const 
__default self::January;
    
    const 
January 1;
    const 
February 2;
    const 
March 3;
    const 
April 4;
    const 
May 5;
    const 
June 6;
    const 
July 7;
    const 
August 8;
    const 
September 9;
    const 
October 10;
    const 
November 11;
    const 
December 12;
}

echo new 
Month(Month::June) . PHP_EOL;

try {
    new 
Month(13);
} catch (
UnexpectedValueException $uve) {
    echo 
$uve->getMessage() . PHP_EOL;
}
?>

The above example will output:

6
Value not a const in enum Month

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SPL Types
PHP Manual