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;
?>
ReflectionProperty::getDefaultValue
(PHP 8)
ReflectionProperty::getDefaultValue — Returns the default value declared for a property
Açıklama
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 ReflectionClass::hasDefaultValue() to detect the difference.
Örnekler
Örnek 1 ReflectionClass::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
- ReflectionProperty::hasDefaultValue() - Checks if property has a default value declared
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User Contributed Notes 1 note
rwalker dot php at gmail dot com ¶
3 years ago
