ReflectionProperty::getDefaultValue

(PHP 8)

ReflectionProperty::getDefaultValueReturns the default value declared for a property

Açıklama

public ReflectionProperty::getDefaultValue(): mixed

Gets the implicit or explicitly declared default value for a property.

Değiştirgeler

Bu işlevin değiştirgesi yoktur.

Dönen Değerler

The default value if the property has any default value (including null). If there is no default value, then null is returned. It is not possible to differentiate between a null default value and an unitialized typed property. Use ReflectionProperty::hasDefaultValue() to detect the difference.

Örnekler

Örnek 1 ReflectionProperty::getDefaultValue() example

<?php
class Foo {
    public 
$bar 1;
    public ?
int $baz;
    public 
int $boing 0;
}

$ro = new ReflectionClass(Foo::class);
var_dump($ro->getProperty('bar')->getDefaultValue());
var_dump($ro->getProperty('baz')->getDefaultValue());
var_dump($ro->getProperty('boing')->getDefaultValue());
?>

Yukarıdaki örneğin çıktısı:

int(1)
NULL
int(0)

Ayrıca Bakınız

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User Contributed Notes 1 note

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rwalker dot php at gmail dot com
7 months ago
An equivalent for PHP 7:

<?php
$reflectionProperty
= new \ReflectionProperty(Foo::class, 'bar');

//PHP 8:
$defaultValue = $reflectionProperty->getDefaultValue();

//PHP 7:
$defaultValue = $reflectionProperty->getDeclaringClass()->getDefaultProperties()['bar'] ?? null;
?>
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