(PHP 5, PHP 7, PHP 8)
ReflectionProperty::setValue — Set property value
Sets (changes) the property's value.
object
If the property is non-static an object must be provided to change
the property on. If the property is static this parameter is left
out and only value needs to be provided.
valueThe new value.
没有返回值。
| 版本 | 说明 |
|---|---|
| 8.1.0 | Private and protected properties can be accessed by ReflectionProperty::setValue() right away. Previously, they needed to be made accessible by calling ReflectionProperty::setAccessible(); otherwise a ReflectionException was thrown. |
示例 #1 ReflectionProperty::setValue() example
<?php
class Foo {
public static $staticProperty;
public $property;
protected $privateProperty;
}
$reflectionClass = new ReflectionClass('Foo');
$reflectionClass->getProperty('staticProperty')->setValue('foo');
var_dump(Foo::$staticProperty);
$foo = new Foo;
$reflectionClass->getProperty('property')->setValue($foo, 'bar');
var_dump($foo->property);
$reflectionProperty = $reflectionClass->getProperty('privateProperty');
$reflectionProperty->setAccessible(true); // only required prior to PHP 8.1.0
$reflectionProperty->setValue($foo, 'foobar');
var_dump($reflectionProperty->getValue($foo));
?>
以上例程会输出：
string(3) "foo" string(3) "bar" string(6) "foobar"