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ReflectionProperty::__clone> <ReflectionParameter::__toString
[edit] Last updated: Fri, 23 Mar 2012

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ReflectionProperty Sınıfı

(PHP 5)

Giriş

ReflectionProperty sınıfı bir sınıfın özellikleri hakkında bilgi edinilmesini sağlar.

Sınıf Sözdizimi

ReflectionProperty implements Reflector {
/* Sabitler */
const integer IS_STATIC = 1 ;
const integer IS_PUBLIC = 256 ;
const integer IS_PROTECTED = 512 ;
const integer IS_PRIVATE = 1024 ;
/* Özellikler */
public $name ;
public $class ;
/* Yöntemler */
final private void __clone ( void )
__construct ( mixed $sınıf , string $isim )
public static string export ( mixed $sınıf , string $isim [, bool $ihracet ] )
public ReflectionClass getDeclaringClass ( void )
public string getDocComment ( void )
public int getModifiers ( void )
public string getName ( void )
public mixed getValue ([ string $özellik ] )
public bool isDefault ( void )
public bool isPrivate ( void )
public bool isProtected ( void )
public bool isPublic ( void )
public bool isStatic ( void )
public void setAccessible ( bool $erişilebilir )
public void setValue ( object $nesne , mixed $değer )
public string __toString ( void )
}

Özellikler

name

Özelliğin ismi. Salt-okunur olup, bir yazma çabası ReflectionException istisnasına yol açar.

class

Özelliği tanımlayan sınıfın ismi. Salt-okunur olup, bir yazma çabası ReflectionException istisnasına yol açar.

Öntanımlı Sabitler

ReflectionProperty Değiştiricileri

ReflectionProperty::IS_STATIC

Özelliğin static olduğunu belirtir.

ReflectionProperty::IS_PUBLIC

Özelliğin public olduğunu belirtir.

ReflectionProperty::IS_PROTECTED

Özelliğin protected olduğunu belirtir.

ReflectionProperty::IS_PRIVATE

Özelliğin private olduğunu belirtir.

İçindekiler



add a note add a note User Contributed Notes ReflectionProperty
james at digitaledgeit dot com dot au 29-Aug-2010 08:30
Please ignore my previous note. I didn't fully understand what the previous notes were referring to as "runtime". I now see they were referring to a slightly different question.

Apologies!
james at digitaledgeit dot com dot au 29-Aug-2010 08:22
You CAN reflect an object at runtime:

<?php

class Abc {
   
    private
$_abc = 123;
   
    public function
__construct($abc) {
       
$this->_abc = $abc;
    }
   
}
 
$obj = new Abc('def');

$refl = new ReflectionObject($obj);
$prop = $refl->getProperty('_abc');
$prop->setAccessible(true);
echo
$prop->getValue($obj);

?>

This outputs 'def', the value of _abc set at runtime.
rasmus at mindplay dot dk 30-Jul-2010 05:06
I think a more accurate explanation is this:

The Reflection classes are designed to reflect upon the source code of an application, not on any runtime information.

I think you misunderstand the ReflectionProperty constructor in your example above. The fact that it accepts an object as argument is just a convenience feature - you are actually inspecting the class of that object, not the object itself, so it's basically equivalent to:

<?php

// works fine
$Reflection = new ReflectionProperty(get_class($a), 'a');

// throws exception
$Reflection = new ReflectionProperty(get_class($a), 'foo');

?>

Getting the class of the object you're passing in is implied, since inspecting a defined property is the purpose of this class.

In your example, $a->foo is a dynamic member - it is not defined as a member of class, so there is no defining class reference, line number, default value, etc. - which means, there is nothing to reflect upon.

Clearly this very useful library could use some real documentation...
CodeDuck at gmx dot net 08-Feb-2006 08:07
Beware, the Reflection reflects only the information right after compile time based on the definitions, not based on runtime objects. Might be obvious, wasn't for me, until the app throws the exception at my head.

Example:

<?php

class A {
    public
$a = null;

    function
set() {
     
$this->foo = 'bar';
    }
}

$a = new A;
$a->set();

// works fine
$Reflection = new ReflectionProperty($a, 'a');

// throws exception
$Reflection = new ReflectionProperty($a, 'foo');

?>

 
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