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ReflectionClass 类

(PHP 5, PHP 7, PHP 8)

简介

ReflectionClass 类报告了一个类的有关信息。

类摘要

class ReflectionClass implements Reflector {

/* 常量 */

public const int IS_IMPLICIT_ABSTRACT ;

public const int IS_EXPLICIT_ABSTRACT ;

public const int IS_FINAL ;

public const int IS_READONLY ;

public const int SKIP_INITIALIZATION_ON_SERIALIZE ;

public const int SKIP_DESTRUCTOR ;

/* 属性 */

public string $name ;

/* 方法 */

public function __construct (object |string $objectOrClass)

public static function export (mixed $argument, bool $return = false ): string

public function getAttributes (? string $name = null , int $flags = 0): array

public function getConstant (string $name): mixed

public function getConstants (? int $filter = null ): array

public function getConstructor (): ? ReflectionMethod

public function getDefaultProperties (): array

public function getDocComment (): string |false

public function getEndLine (): int |false

public function getExtension (): ? ReflectionExtension

public function getExtensionName (): string |false

public function getFileName (): string |false

public function getInterfaceNames (): array

public function getInterfaces (): array

public function getLazyInitializer (object $object): ? callable

public function getMethod (string $name): ReflectionMethod

public function getMethods (? int $filter = null ): array

public function getModifiers (): int

public function getName (): string

public function getNamespaceName (): string

public function getParentClass (): ReflectionClass |false

public function getProperties (? int $filter = null ): array

public function getProperty (string $name): ReflectionProperty

public function getReflectionConstant (string $name): ReflectionClassConstant |false

public function getReflectionConstants (? int $filter = null ): array

public function getShortName (): string

public function getStartLine (): int |false

public function getStaticProperties (): array

public function getStaticPropertyValue (string $name, mixed &$def_value = ?): mixed

public function getTraitAliases (): array

public function getTraitNames (): array

public function getTraits (): array

public function hasConstant (string $name): bool

public function hasMethod (string $name): bool

public function hasProperty (string $name): bool

public function implementsInterface (ReflectionClass |string $interface): bool

public function initializeLazyObject (object $object): object

public function inNamespace (): bool

public function isAbstract (): bool

public function isAnonymous (): bool

public function isCloneable (): bool

public function isEnum (): bool

public function isFinal (): bool

public function isInstance (object $object): bool

public function isInstantiable (): bool

public function isInterface (): bool

public function isInternal (): bool

public function isIterable (): bool

public function isReadOnly (): bool

public function isSubclassOf (ReflectionClass |string $class): bool

public function isTrait (): bool

public function isUninitializedLazyObject (object $object): bool

public function isUserDefined (): bool

public function markLazyObjectAsInitialized (object $object): object

public function newInstance (mixed ...$args): object

public function newInstanceArgs (array $args = []): ? object

public function newInstanceWithoutConstructor (): object

public function newLazyGhost (callable $initializer, int $options = 0): object

public function newLazyProxy (callable $factory, int $options = 0): object

public function resetAsLazyGhost (object $object, callable $initializer, int $options = 0): void

public function resetAsLazyProxy (object $object, callable $factory, int $options = 0): void

public function setStaticPropertyValue (string $name, mixed $value): void

public function __toString (): string

}

属性

name: 类名。只读,尝试赋值时抛出 ReflectionException 。

预定义常量

ReflectionClass 修饰符

ReflectionClass::IS_IMPLICIT_ABSTRACT int: 表示该类是 abstract,因为有一些抽象方法。
ReflectionClass::IS_EXPLICIT_ABSTRACT int: 表示该类是 abstract,因为已明确定义。
ReflectionClass::IS_FINAL int: 表示该类是 final。
ReflectionClass::IS_READONLY int: 表示该类是 readonly。
ReflectionClass::SKIP_INITIALIZATION_ON_SERIALIZE int: 表示 serialize() 不应触发延迟对象的初始化。
ReflectionClass::SKIP_DESTRUCTOR int: 表示将对象重置为延迟时不应调用对象析构方法。

更新日志

版本	说明
8.4.0	所有类常量现已类型化。
8.0.0	移除 ReflectionClass::export() 。

目录

ReflectionClass::__construct — 初始化 ReflectionClass 类
ReflectionClass::export — 导出类
ReflectionClass::getAttributes — 获取所有属性
ReflectionClass::getConstant — 获取已定义的常量
ReflectionClass::getConstants — 获取常量
ReflectionClass::getConstructor — 获取类的构造函数
ReflectionClass::getDefaultProperties — 获取默认属性
ReflectionClass::getDocComment — 获取文档注释
ReflectionClass::getEndLine — 获取最后一行的行数
ReflectionClass::getExtension — 根据已定义的类获取所在扩展的 ReflectionExtension 对象
ReflectionClass::getExtensionName — 获取定义的类所在的扩展的名称
ReflectionClass::getFileName — 获取定义类的文件名
ReflectionClass::getInterfaceNames — 获取接口(interface)名称
ReflectionClass::getInterfaces — 获取接口
ReflectionClass::getLazyInitializer — Gets lazy initializer
ReflectionClass::getMethod — 获取类方法的 ReflectionMethod
ReflectionClass::getMethods — 获取方法的数组
ReflectionClass::getModifiers — 获取类的修饰符
ReflectionClass::getName — 获取类名
ReflectionClass::getNamespaceName — 获取命名空间的名称
ReflectionClass::getParentClass — 获取父类
ReflectionClass::getProperties — 获取属性
ReflectionClass::getProperty — 获取类的一个属性的 ReflectionProperty
ReflectionClass::getReflectionConstant — Gets a ReflectionClassConstant for a class's constant
ReflectionClass::getReflectionConstants — Gets class constants
ReflectionClass::getShortName — 获取短名
ReflectionClass::getStartLine — 获取起始行号
ReflectionClass::getStaticProperties — 获取静态(static)属性
ReflectionClass::getStaticPropertyValue — 获取静态(static)属性的值
ReflectionClass::getTraitAliases — 返回 trait 别名数组
ReflectionClass::getTraitNames — 返回这个类所使用 traits 的名称的数组
ReflectionClass::getTraits — 返回这个类所使用的 traits 数组
ReflectionClass::hasConstant — 检查常量是否已经定义
ReflectionClass::hasMethod — 检查方法是否已定义
ReflectionClass::hasProperty — 检查属性是否已定义
ReflectionClass::implementsInterface — 实现接口
ReflectionClass::initializeLazyObject — Forces initialization of a lazy object
ReflectionClass::inNamespace — 检查是否位于命名空间中
ReflectionClass::isAbstract — 检查类是否是抽象类(abstract)
ReflectionClass::isAnonymous — 检查类是否是匿名类
ReflectionClass::isCloneable — 返回了一个类是否可复制
ReflectionClass::isEnum — Returns whether this is an enum
ReflectionClass::isFinal — 检查类是否声明为 final
ReflectionClass::isInstance — 检查类的实例
ReflectionClass::isInstantiable — 检查类是否可实例化
ReflectionClass::isInterface — 检查类是否是接口(interface)
ReflectionClass::isInternal — 检查类是否由扩展或核心在内部定义
ReflectionClass::isIterable — Check whether this class is iterable
ReflectionClass::isIterateable — 别名 ReflectionClass::isIterable
ReflectionClass::isReadOnly — Checks if class is readonly
ReflectionClass::isSubclassOf — 检查是否为子类
ReflectionClass::isTrait — 返回了是否是 trait
ReflectionClass::isUninitializedLazyObject — Checks if an object is lazy and uninitialized
ReflectionClass::isUserDefined — 检查是否由用户定义的
ReflectionClass::markLazyObjectAsInitialized — Marks a lazy object as initialized without calling the initializer or factory
ReflectionClass::newInstance — 从指定的参数创建新类实例
ReflectionClass::newInstanceArgs — 从给出的参数创建一个新的类实例
ReflectionClass::newInstanceWithoutConstructor — 创建新的类实例而不调用它的构造函数
ReflectionClass::newLazyGhost — Creates a new lazy ghost instance
ReflectionClass::newLazyProxy — Creates a new lazy proxy instance
ReflectionClass::resetAsLazyGhost — Resets an object and marks it as lazy
ReflectionClass::resetAsLazyProxy — Resets an object and marks it as lazy
ReflectionClass::setStaticPropertyValue — 设置 public static 属性的值
ReflectionClass::__toString — 返回 ReflectionClass 对象字符串的表示形式

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用户贡献的备注 4 notes

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41

danbettles at yahoo dot co dot uk ¶

17 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');
?>

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25

Anonymous ¶

14 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
?>

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21

Anonymous ¶

13 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
?>

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5

featherbits ¶

5 years ago

In order to get class attributes look here (php8)
https://www.php.net/manual/en/language.attributes.reflection.php