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ReflectionClass::getProperties

(PHP 5)

ReflectionClass::getPropertiesGets properties

Description

public array ReflectionClass::getProperties ([ int $filter ] )

Retrieves reflected properties.

Parameters

filter

The optional filter, for filtering desired property types. It's configured using the ReflectionProperty constants, and defaults to all property types.

Return Values

An array of ReflectionProperty objects.

Examples

Example #1 ReflectionClass::getProperties() filtering example

This example demonstrates usage of the optional filter parameter, where it essentially skips private properties.

<?php
class Foo {
    public    
$foo  1;
    protected 
$bar  2;
    private   
$baz  3;
}

$foo = new Foo();

$reflect = new ReflectionClass($foo);
$props   $reflect->getProperties(ReflectionProperty::IS_PUBLIC ReflectionProperty::IS_PROTECTED);

foreach (
$props as $prop) {
    print 
$prop->getName() . "\n";
}

var_dump($props);

?>

The above example will output something similar to:

foo
bar
array(2) {
  [0]=>
  object(ReflectionProperty)#3 (2) {
    ["name"]=>
    string(3) "foo"
    ["class"]=>
    string(3) "Foo"
  }
  [1]=>
  object(ReflectionProperty)#4 (2) {
    ["name"]=>
    string(3) "bar"
    ["class"]=>
    string(3) "Foo"
  }
}

See Also

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User Contributed Notes 6 notes

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0
postmaster at greg0ire dot fr
1 month ago
The code in the first example actually does get inherited properties with at least php 5.5.9 . I don't know if / when this behavior changed.

Here is the output:
    array(2) {
     [0] =>
     class ReflectionProperty#2 (2) {
       public $name =>
       string(2) "a2"
       public $class =>
       string(2) "AA"
     }
     [1] =>
     class ReflectionProperty#3 (2) {
       public $name =>
       string(2) "a1"
       public $class =>
       string(1) "A"
     }
    }
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0
Jeff Hunter
4 years ago
It appears the filter parameter accepts a long value that is one of ReflectionProperty::IS_STATIC, ReflectionProperty::IS_PUBLIC, ReflectionProperty::IS_PROTECTED, or ReflectionProperty::IS_PRIVATE as a way to limit the returned properties.  Flags may be combined by adding them together.

Example:

<?php
class Foo {
  public
$alpha = 1;
  protected
$beta = 2;
  private
$gamma = 3;

  public function
listProperties() {
   
$reflect = new ReflectionObject($this);
    foreach (
$reflect->getProperties(ReflectionProperty::IS_PUBLIC + ReflectionProperty::IS_PROTECTED) as $prop) {
      print
$prop->getName() . "\n";
    }
  }
}

$foo = new Foo();
$foo->listProperties();
?>

will output:

  alpha
  beta
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0
mcurtis
5 years ago
It should be noted that the 'filter' parameter in the getProperties(filter) method is expected to be of type long.  Not sure why, but it doesn't function as a way of passing in a string to fetch a subset of properties by string match.
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0
muratyaman at gmail dot com
5 years ago
Some may find this useful.

<?php
/**
* Recursive function to get an associative array of class properties by property name => ReflectionProperty() object
* including inherited ones from extended classes
* @param string $className Class name
* @param string $types Any combination of <b>public, private, protected, static</b>
* @return array
*/
function getClassProperties($className, $types='public'){
   
$ref = new ReflectionClass($className);
   
$props = $ref->getProperties();
   
$props_arr = array();
    foreach(
$props as $prop){
       
$f = $prop->getName();
       
        if(
$prop->isPublic() and (stripos($types, 'public') === FALSE)) continue;
        if(
$prop->isPrivate() and (stripos($types, 'private') === FALSE)) continue;
        if(
$prop->isProtected() and (stripos($types, 'protected') === FALSE)) continue;
        if(
$prop->isStatic() and (stripos($types, 'static') === FALSE)) continue;
       
       
$props_arr[$f] = $prop;
    }
    if(
$parentClass = $ref->getParentClass()){
       
$parent_props_arr = getClassProperties($parentClass->getName());//RECURSION
       
if(count($parent_props_arr) > 0)
           
$props_arr = array_merge($parent_props_arr, $props_arr);
    }
    return
$props_arr;
}

//USAGE

class A{
  public
$a1;
   
    function
abc(){
       
//do something
   
}
}

class
AA extends A{
    public
$a2;
   
    function
edf(){
       
//do something
   
}
}

class
AAA extends AA{
 
//may not have extra properties, but may have extra methods
   
function ghi(){
       
//ok
   
}
}

//$ref = new ReflectionClass('AAA'); $props = $ref->getProperties();//This will get no properties!
$props_arr = getClassProperties('AAA', 'public');//Use this
var_dump($props_arr);
/*
OUTPUT on PHP5.2.6:
array
  'a1' =>
    object(ReflectionProperty)[4]
      public 'name' => string 'a1' (length=2)
      public 'class' => string 'AAA' (length=3)
  'a2' =>
    object(ReflectionProperty)[3]
      public 'name' => string 'a2' (length=2)
      public 'class' => string 'AAA' (length=3)

*/

?>
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-1
Yzmir Ramirez
3 years ago
Looks like you can access public, protected, private variables by casting the object to an array (useful for Unit Testing).  However casting to an array still won't allow you access to protected and private static variables.

In PHP 5.3.0+ use ReflectionProperty::setAccessable(true);

<?php

echo "PHP Version: ".phpversion()."\n";

class
Foo {
    public   
$foo  = 'public';
    protected
$bar  = 'protected';
    private  
$baz  = 'private';

    public static   
$sfoo  = 'public static';
    protected static
$sbar  = 'protected static';
    private static  
$sbaz  = 'private static';

    const
COO = 'const';

}

$obj = new Foo;

$arr = (array)$obj;

print_r($arr);

echo
"Accessing Public Static: ".Foo::$sfoo."\n";
// echo Foo::$sbar."\n"; // Fatal error: Cannot access protected property Foo::$sbar
// echo Foo::$sbaz."\n"; // Fatal error: Cannot access private property Foo::$sbaz
echo "Accessing Constant: ".Foo::COO."\n";
?>

PHP Version: 5.2.12
Array
(
    [foo] => public
    [*bar] => protected
    [Foobaz] => private
)
Accessing Public Static: public static
Accessing Constant: const

PHP Version: 5.1.6
Array
(
    [foo] => public
    [*bar] => protected
    [Foobaz] => private
)
Accessing Public Static: public static
Accessing Constant: const
up
-1
david dot thalmann at gmail dot com
5 years ago
With PHP 5.3 protected or private properties are easy to access with setAccessible(). However, it's sometimes needed (e.g. Unit Tests) and here is a workaround for getValue():

<?php

$class
= new ReflectionClass('SomeClass');
$props = $class->getProperties();
// $propsStatic = $class->getStaticProperties();

$myPrivatePropertyValue = $props['aPrivateProperty'];

?>

Note that it wont work if you access the property directly with getProperty().
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