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ReflectionClass クラス

(PHP 5, PHP 7)

はじめに

ReflectionClass クラスは クラスについての情報を報告します。

クラス概要

ReflectionClass implements Reflector {
/* 定数 */
const int IS_IMPLICIT_ABSTRACT = 16 ;
const int IS_EXPLICIT_ABSTRACT = 32 ;
const int IS_FINAL = 64 ;
/* プロパティ */
public $name ;
/* メソッド */
public __construct ( mixed $argument )
public static export ( mixed $argument [, bool $return = FALSE ] ) : string
public getConstant ( string $name ) : mixed
public getConstants ( ) : array
public getConstructor ( ) : object
public getDefaultProperties ( ) : array
public getDocComment ( ) : string
public getEndLine ( ) : int
public getExtensionName ( ) : string
public getFileName ( ) : string
public getInterfaceNames ( ) : array
public getInterfaces ( ) : array
public getMethod ( string $name ) : ReflectionMethod
public getMethods ([ int $filter ] ) : array
public getModifiers ( ) : int
public getName ( ) : string
public getNamespaceName ( ) : string
public getProperties ([ int $filter ] ) : array
public getProperty ( string $name ) : ReflectionProperty
public getReflectionConstant ( string $name ) : ReflectionClassConstant|false
public getReflectionConstants ( ) : array
public getShortName ( ) : string
public getStartLine ( ) : int
public getStaticProperties ( ) : array
public getStaticPropertyValue ( string $name [, mixed &$def_value ] ) : mixed
public getTraitAliases ( ) : array
public getTraitNames ( ) : array
public getTraits ( ) : array
public hasConstant ( string $name ) : bool
public hasMethod ( string $name ) : bool
public hasProperty ( string $name ) : bool
public implementsInterface ( ReflectionClass|string $interface ) : bool
public inNamespace ( ) : bool
public isAbstract ( ) : bool
public isAnonymous ( ) : bool
public isCloneable ( ) : bool
public isFinal ( ) : bool
public isInstance ( object $object ) : bool
public isInstantiable ( ) : bool
public isInterface ( ) : bool
public isInternal ( ) : bool
public isIterable ( ) : bool
public isSubclassOf ( mixed $class ) : bool
public isTrait ( ) : bool
public isUserDefined ( ) : bool
public newInstance ( mixed ...$args ) : object
public newInstanceArgs ([ array $args ] ) : object
public newInstanceWithoutConstructor ( ) : object
public setStaticPropertyValue ( string $name , mixed $value ) : void
public __toString ( ) : string
}

プロパティ

name

クラス名。読み込み専用で、書き込もうとすると ReflectionException をスローします。

定義済み定数

ReflectionClass の修飾子

ReflectionClass::IS_IMPLICIT_ABSTRACT

抽象メソッドを持っているので abstract クラスであることを示します。

ReflectionClass::IS_EXPLICIT_ABSTRACT

その定義から abstract クラスであることを示します。

ReflectionClass::IS_FINAL

final クラスを示します。

目次

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User Contributed Notes 4 notes

up
34
danbettles at yahoo dot co dot uk
11 years ago
To reflect on a namespaced class in PHP 5.3, you must always specify the fully qualified name of the class - even if you've aliased the containing namespace using a "use" statement.

So instead of:

<?php
use App\Core as Core;
$oReflectionClass = new ReflectionClass('Core\Singleton');
?>

You would type:

<?php
use App\Core as Core;
$oReflectionClass = new ReflectionClass('App\Core\Singleton');
?>
up
19
Anonymous
7 years ago
Reflecting an alias will give you a reflection of the resolved class.

<?php

class X {
   
}

class_alias('X','Y');
class_alias('Y','Z');
$z = new ReflectionClass('Z');
echo
$z->getName(); // X

?>
up
19
Anonymous
9 years ago
Unserialized reflection class cause error.

<?php
/**
* abc
*/
class a{}

$ref = new ReflectionClass('a');
$ref = unserialize(serialize($ref));
var_dump($ref);
var_dump($ref->getDocComment());

// object(ReflectionClass)#2 (1) {
//   ["name"]=>
//   string(1) "a"
// }
// PHP Fatal error:  ReflectionClass::getDocComment(): Internal error: Failed to retrieve the reflection object
?>
up
-21
YoungOfCthulhu
5 years ago
It is also possible to do reflection from within the class and get the methods for instance.

<?php

class test
{
    private
$test = "";

    public function
setTest($test)
    {
       
$this->test = $test;
        return
$this;
    }

    public function
getTest()
    {
        return
$this->test;
    }
   
    public function
run(){
       
$class = new ReflectionClass('test');
       
$methods = $class->getMethods();
       
var_dump($methods);
    }
}

Called from another php file you get the proper result:
array(
3) {
  [
0]=>
  &
object(ReflectionMethod)#3 (2) {
   
["name"]=>
   
string(8) "setTest"
   
["class"]=>
   
string(4) "test"
 
}
  [
1]=>
  &
object(ReflectionMethod)#4 (2) {
   
["name"]=>
   
string(8) "getTest"
   
["class"]=>
   
string(4) "test"
 
}
  [
2]=>
  &
object(ReflectionMethod)#5 (2) {
   
["name"]=>
   
string(3) "run"
   
["class"]=>
   
string(4) "test"
 
}
}
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