The SplEnum class
(PECL spl_types >= 0.1.0)
简介
SplEnum gives the ability to emulate and create enumeration objects natively in PHP.
类摘要
预定义常量
SplEnum::__default-
范例
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;
}
?>
以上例程会输出：
6 Value not a const in enum Month
Table of Contents
- SplEnum::getConstList — Returns all consts (possible values) as an array