SplFloat
Here's a clearer example usage in case anyone else finds the
current documentation confusing (as I did).
<?php
class Fruit extends SplEnum
{
// If no value is given during object construction this value is used
const __default = 1;
// Our enum values
const APPLE = 1;
const ORANGE = 2;
}
$myApple = new Fruit();
$myOrange = new Fruit(Fruit::ORANGE);
$fail = 1;
function eat(Fruit $aFruit)
{
if (Fruit::APPLE == $aFruit) {
echo "Eating an apple.\n";
} elseif (Fruit::ORANGE == $aFruit) {
echo "Eating an orange.\n";
}
}
eat($myApple); // Eating an apple.
eat($myOrange); // Eating an orange.
eat($fail); // PHP Catchable fatal error: Argument 1 passed to eat() must be an instance of Fruit, integer given
?>
La classe SplEnum
(No version information available, might only be in SVN)
Introduction
La classe SplEnum est utilisée pour émuler et créer des objets d'énumération nativement en PHP.
Synopsis de la classe
Constantes pré-définies
-
SplEnum::__default
Exemples
Exemple #1 Exemple d'utilisation de la classe SplEnum
<?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;
}
?>
L'exemple ci-dessus va afficher :
6 Value not a const in enum Month
Sommaire
- SplEnum::getConstList — Retourne toutes les constantes sous la forme d'un tableau
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User Contributed Notes
SplEnum - [1 notes]
No Such Alias ¶
2 years ago