ReflectionMethod 类

    (PHP 5, PHP 7, PHP 8)

    简介

    ReflectionMethod 类报告有关方法的信息。

    类摘要

    class ReflectionMethod extends ReflectionFunctionAbstract {
    /* 常量 */
    public const int IS_STATIC;
    public const int IS_PUBLIC;
    public const int IS_PROTECTED;
    public const int IS_PRIVATE;
    public const int IS_ABSTRACT;
    public const int IS_FINAL;
    /* 属性 */
    public string $class;
    /* 继承的属性 */
    public string $name;
    /* 方法 */
    public __construct(object|string $objectOrMethod, string $method)
    public __construct(string $classMethod)
    public static createFromMethodName(string $method): static
    public static export(string $class, string $name, bool $return = false): string
    public getClosure(?object $object = null): Closure
    public getDeclaringClass(): ReflectionClass
    public getModifiers(): int
    public getPrototype(): ReflectionMethod
    public hasPrototype(): bool
    public invoke(?object $object, mixed ...$args): mixed
    public invokeArgs(?object $object, array $args): mixed
    public isAbstract(): bool
    public isConstructor(): bool
    public isDestructor(): bool
    public isFinal(): bool
    public isPrivate(): bool
    public isProtected(): bool
    public isPublic(): bool
    public setAccessible(bool $accessible): void
    public __toString(): string
    /* 继承的方法 */
    private ReflectionFunctionAbstract::__clone(): void
    public ReflectionFunctionAbstract::getAttributes(?string $name = null, int $flags = 0): array
    public ReflectionFunctionAbstract::getClosureCalledClass(): ?ReflectionClass
    public ReflectionFunctionAbstract::getClosureScopeClass(): ?ReflectionClass
    public ReflectionFunctionAbstract::getClosureThis(): ?object
    public ReflectionFunctionAbstract::getClosureUsedVariables(): array
    public ReflectionFunctionAbstract::getDocComment(): string|false
    public ReflectionFunctionAbstract::getEndLine(): int|false
    public ReflectionFunctionAbstract::getExtension(): ?ReflectionExtension
    public ReflectionFunctionAbstract::getExtensionName(): string|false
    public ReflectionFunctionAbstract::getFileName(): string|false
    public ReflectionFunctionAbstract::getName(): string
    public ReflectionFunctionAbstract::getNamespaceName(): string
    public ReflectionFunctionAbstract::getNumberOfParameters(): int
    public ReflectionFunctionAbstract::getNumberOfRequiredParameters(): int
    public ReflectionFunctionAbstract::getParameters(): array
    public ReflectionFunctionAbstract::getReturnType(): ?ReflectionType
    public ReflectionFunctionAbstract::getShortName(): string
    public ReflectionFunctionAbstract::getStartLine(): int|false
    public ReflectionFunctionAbstract::getStaticVariables(): array
    public ReflectionFunctionAbstract::getTentativeReturnType(): ?ReflectionType
    public ReflectionFunctionAbstract::hasReturnType(): bool
    public ReflectionFunctionAbstract::hasTentativeReturnType(): bool
    public ReflectionFunctionAbstract::inNamespace(): bool
    public ReflectionFunctionAbstract::isClosure(): bool
    public ReflectionFunctionAbstract::isDeprecated(): bool
    public ReflectionFunctionAbstract::isGenerator(): bool
    public ReflectionFunctionAbstract::isInternal(): bool
    public ReflectionFunctionAbstract::isStatic(): bool
    public ReflectionFunctionAbstract::isUserDefined(): bool
    public ReflectionFunctionAbstract::isVariadic(): bool
    public ReflectionFunctionAbstract::returnsReference(): bool
    abstract public ReflectionFunctionAbstract::__toString(): void
    }

    属性

    name

    方法名

    class

    类名

    预定义常量

    ReflectionMethod 修饰符

    ReflectionMethod::IS_STATIC

    表示该方法是 static。在 PHP 7.4.0 之前，值为 1。

    ReflectionMethod::IS_PUBLIC

    表示该方法是 public。在 PHP 7.4.0 之前，值为 256。

    ReflectionMethod::IS_PROTECTED

    表示该方法是 protected。在 PHP 7.4.0 之前，值为 512。

    ReflectionMethod::IS_PRIVATE

    表示该方法是 private。在 PHP 7.4.0 之前，值为 1024。

    ReflectionMethod::IS_ABSTRACT

    表示该方法是 abstract。PHP 7.4.0 之前，值为 2。

    ReflectionMethod::IS_FINAL

    表示该方法是 final。PHP 7.4.0 之前，值为 4。

    注意:

    这些常量的值可能会在不同 PHP 版本间发生更改。建议始终使用常量而不直接依赖值。

    更新日志

    版本 说明
    8.0.0 已移除 ReflectionMethod::export()。

    目录

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    用户贡献的备注 2 notes

    up
    12
    webseiten dot designer at googlemail dot com
    13 years ago
    Note that the public member $class contains the name of the class in which the method has been defined:

    <?php
    class A {public function __construct() {}}
    class     B extends A {}

    $method = new ReflectionMethod('B', '__construct');
    echo     $method->class; // prints 'A'
    ?>
    up
    9
    Anonymous
    4 years ago
    We can make a "Automatic dependenci injector" in classes when her constructors depends other classes (with type hint).

    <?php

    class Dependence1 {
    function     foo() {
    echo     "foo";
    }
    }

    class     Dependence2 {
    function     foo2() {
    echo     "foo2";
    }
    }

    final class     myClass
    {
    private     $dep1;
    private     $dep2;

    public function     __construct(
    Dependence1 $dependence1,
    Dependence2 $dependence2
    )
    {
    $this->dep1 = $dependence1;
    $this->dep2 = $dependence2;
    }

    }

    // Automatic dependence injection (CLASSES)

    $constructor = new ReflectionMethod(myClass::class, '__construct');
    $parameters = $constructor->getParameters();

    $dependences = [];
    foreach (    $parameters as $parameter) {
    $dependenceClass = (string) $parameter->getType();
    $dependences[] = new $dependenceClass();
    }

    $instance = new myClass(...$dependences);
    var_dump($instance);

    ?>

    Results in:

    object(myClass)#6 (2) {
    ["dep1":"myClass":private]=>
    object(Dependence1)#4 (0) {
    }
    ["dep2":"myClass":private]=>
    object(Dependence2)#5 (0) {
    }
    }
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