(PHP 5)
ReflectionProperty::getValue — Gets value
Gets the properties value.
object
If the property is non-static an object must be provided to fetch the property from. If you want to fetch the default property without providing an object use ReflectionClass::getDefaultProperties() instead.
The current value of the property.
Throws a ReflectionException if the property is inaccessible. You can make a protected or private property accessible using ReflectionProperty::setAccessible().
Example #1 ReflectionProperty::getValue() example
<?php
class Foo {
public static $staticProperty = 'foobar';
public $property = 'barfoo';
protected $privateProperty = 'foofoo';
}
$reflectionClass = new ReflectionClass('Foo');
var_dump($reflectionClass->getProperty('staticProperty')->getValue());
var_dump($reflectionClass->getProperty('property')->getValue(new Foo));
$reflectionProperty = $reflectionClass->getProperty('privateProperty');
$reflectionProperty->setAccessible(true);
var_dump($reflectionProperty->getValue(new Foo));
?>
以上例程会输出：
string(6) "foobar" string(6) "barfoo" string(6) "foofoo"
sergiy dot sokolenko at gmail dot com (2010-06-28 15:48:31)
To allow protected and private properties to be accessed, you should use
ReflectionProperty::setAccessible(bool $accessible):
<?php
/** Class Foo with protected and private members */
class Foo {
protected $bar = 'barrr!';
private $baz = 'bazzz!';
}
$reflFoo = new ReflectionClass('Foo');
$reflBar = $reflFoo->getProperty('bar');
$reflBaz = $reflFoo->getProperty('baz');
// Set private and protected members accessible for getValue/setValue
$reflBar->setAccessible(true);
$reflBaz->setAccessible(true);
$foo = new Foo();
echo $reflBar->getValue($foo); // will output "barrr!"
echo $reflBaz->getValue($foo); // will output "bazzz!"
// You can also setValue
$reflBar->setValue($foo, "new value");
echo $reflBar->getValue($foo); // will output "new value"
?>
tedivm at tedivm dot com (2010-01-09 21:33:15)
Note this function does not return the value for everything, only public properties. Protected or private properties will result in a exception being thrown.