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SplEnum gives the ability to emulate and create enumeration objects natively in PHP.
SplEnum::__default
Przykład #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;
}
?>
Powyższy przykład wyświetli:
6 Value not a const in enum Month