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 __construct(object|string $objectOrClass)
public static export(mixed $argument, bool $return = false): string
public getAttributes(?string $name = null, int $flags = 0): array
public getConstant(string $name): mixed
public getConstants(?int $filter = null): array
public getConstructor(): ?ReflectionMethod
public getDefaultProperties(): array
public getDocComment(): string|false
public getEndLine(): int|false
public getExtension(): ?ReflectionExtension
public getExtensionName(): string|false
public getFileName(): string|false
public getInterfaceNames(): array
public getInterfaces(): array
public getLazyInitializer(object $object): ?callable
public getMethod(string $name): ReflectionMethod
public getMethods(?int $filter = null): array
public getModifiers(): int
public getName(): string
public getNamespaceName(): string
public getParentClass(): ReflectionClass|false
public getProperties(?int $filter = null): array
public getProperty(string $name): ReflectionProperty
public getReflectionConstant(string $name): ReflectionClassConstant|false
public getReflectionConstants(?int $filter = null): array
public getShortName(): string
public getStartLine(): int|false
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 initializeLazyObject(object $object): object
public inNamespace(): bool
public isAbstract(): bool
public isAnonymous(): bool
public isCloneable(): bool
public isEnum(): bool
public isFinal(): bool
public isInstance(object $object): bool
public isInstantiable(): bool
public isInterface(): bool
public isInternal(): bool
public isIterable(): bool
public isReadOnly(): bool
public isSubclassOf(ReflectionClass|string $class): bool
public isTrait(): bool
public isUninitializedLazyObject(object $object): bool
public isUserDefined(): bool
public markLazyObjectAsInitialized(object $object): object
public newInstance(mixed ...$args): object
public newInstanceArgs(array $args = []): ?object
public newInstanceWithoutConstructor(): object
public newLazyGhost(callable $initializer, int $options = 0): object
public newLazyProxy(callable $factory, int $options = 0): object
public resetAsLazyGhost(object $object, callable $initializer, int $options = 0): void
public resetAsLazyProxy(object $object, callable $factory, int $options = 0): void
public setStaticPropertyValue(string $name, mixed $value): void
public __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

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用户贡献的备注 4 notes

up
40
danbettles at yahoo dot co dot uk
15 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
25
Anonymous
13 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
Anonymous
11 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
4
featherbits
4 years ago
In order to get class attributes look here (php8)
https://www.php.net/manual/en/language.attributes.reflection.php
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备份地址：http://www.lvesu.com/blog/php/class.reflectionclass.php