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
Description
Gets the implicit or explicitly declared default value for a property.
Liste de paramètres
Cette fonction ne contient aucun paramètre.
Valeurs de retour
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.
Exemples
Exemple #1 ReflectionProperty::getDefaultValue() example
<?php
class Foo {
public $bar = 1;
public ?int $baz;
public int $boing = 0;
public function __construct(public string $bak = "default") { }
}
$ro = new ReflectionClass(Foo::class);
var_dump($ro->getProperty('bar')->getDefaultValue());
var_dump($ro->getProperty('baz')->getDefaultValue());
var_dump($ro->getProperty('boing')->getDefaultValue());
var_dump($ro->getProperty('bak')->getDefaultValue());
?>L'exemple ci-dessus va afficher :
int(1) NULL int(0) NULL
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User Contributed Notes 1 note
rwalker dot php at gmail dot com ¶
3 years ago
