SplEnum
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
?>
SplEnum::__construct
(PECL spl_types >= 0.1.0)
SplEnum::__construct — Constructs an enumeration object type
Descripción
SplEnum::__construct()
( void
)
This constructor is used to set the value and the strictness of the enumeration object.
Parámetros
- input
-
The input parameter accepts an integer and will throw an UnexpectedValueException if anything else is passed.
- strict
-
A boolean variable to indicate whether the object's strictness should be set or not.
Valores devueltos
No devuelve ningún valor.
Ejemplos
Example #1 SplEnum::__construct() example
<?php
class EnumOne extends SplEnum
{
const __default = 1;
}
class EnumTwo extends SplEnum
{
const __default = 2;
}
class EnumThree extends SplEnum
{
const __default = 3;
}
$enumOne = new EnumOne();
$enumTwo = new EnumTwo();
$enumThree = new EnumThree();
echo 'Enum one : ' . $enumOne . PHP_EOL;
echo 'Enum two : ' . $enumTwo . PHP_EOL;
echo 'Enum three: ' . $enumThree . PHP_EOL;
?>
El resultado del ejemplo sería:
Enum one : 1 Enum two : 2 Enum three: 3
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User Contributed Notes
SplEnum::__construct
No Such Alias
30-Jul-2010 04:11