(PHP 5)
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.
value
The new value.
没有返回值。
Throws a ReflectionException if the property is inaccessible. You can make a protected or private property accessible using ReflectionProperty::setAccessible().
Example #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);
$reflectionProperty->setValue($foo, 'foobar');
var_dump($reflectionProperty->getValue($foo));
?>
以上例程会输出：
string(3) "foo" string(3) "bar" string(6) "foobar"
me at ircmaxell dot om (2011-06-22 09:27:47)
You can use ReflectionProperty::setValue to set the value on static properties as well as regular instance properties. Simply pass null in place of the instance:
<?php
class Foo {
protected static $bar = null;
public static function sayBar() {
echo self::$bar;
}
}
$r = new ReflectionProperty('Foo', 'bar');
$r->setAccessible(true);
$r->setValue(null, 'foo');
Foo::sayBar(); // "foo"
?>