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Immutable 3.8.1

类和函数 | Classes and Functions

压缩 | Compression

加密 | Cryptography

数据结构 | Data Structures

数据库 | Database

Database/PostgreSQL

Database/SQL Server

Database/SQLite

日期和时间 | Date and Time

编码 | Encoding

错误 | Errors

文件系统 | File System

Firebird/InterBase

Image/GraphicsMagick

Image/ImageMagick

Internationalization

语言 | Language

语言参考 | Language Reference

数学 | Mathematics

联网 | Networking

处理控制 | Process Control

反射 | Reflection

Reflection (class)

Reflection::export

Reflection::getModifierNames

ReflectionClass (class)

ReflectionClass::export

ReflectionClass::getConstant

ReflectionClass::getConstants

ReflectionClass::getConstructor

ReflectionClass::getDefaultProperties

ReflectionClass::getDocComment

ReflectionClass::getEndLine

ReflectionClass::getExtension

ReflectionClass::getExtensionName

ReflectionClass::getFileName

ReflectionClass::getInterfaceNames

ReflectionClass::getMethod

ReflectionClass::getMethods

ReflectionClass::getModifiers

ReflectionClass::getName

ReflectionClass::getNamespaceName

ReflectionClass::getParentClass

ReflectionClass::getProperties

ReflectionClass::getProperty

ReflectionClass::getReflectionConstant

ReflectionClass::getReflectionConstants

ReflectionClass::getStartLine

ReflectionClass::getStaticProperties

ReflectionClass::getStaticPropertyValue

ReflectionClass::getTraitAliases

ReflectionClass::getTraitNames

ReflectionClass::getTraits

ReflectionClass::hasConstant

ReflectionClass::hasMethod

ReflectionClass::hasProperty

ReflectionClass::implementsInterface

ReflectionClass::inNamespace

ReflectionClass::isAbstract

ReflectionClass::isAnonymous

ReflectionClass::isCloneable

ReflectionClass::isFinal

ReflectionClass::isInstance

ReflectionClass::isInstantiable

ReflectionClass::isInterface

ReflectionClass::isInternal

ReflectionClass::isIterateable

ReflectionClass::isSubclassOf

ReflectionClass::isTrait

ReflectionClass::isUserDefined

ReflectionClass::newInstance

ReflectionClass::newInstanceArgs

ReflectionClass::newInstanceWithoutConstructor

ReflectionClass::setStaticPropertyValue

ReflectionClass::__construct

ReflectionClass::__toString

ReflectionClassConstant (class)

ReflectionClassConstant::export

ReflectionClassConstant::getDeclaringClass

ReflectionClassConstant::getDocComment

ReflectionClassConstant::getModifiers

ReflectionClassConstant::getValue

ReflectionClassConstant::isPrivate

ReflectionClassConstant::isProtected

ReflectionClassConstant::isPublic

ReflectionClassConstant::__construct

ReflectionClassConstant::__toString

ReflectionException (class)

ReflectionExtension::export

ReflectionExtension::getClasses

ReflectionExtension::getClassNames

ReflectionExtension::getConstants

ReflectionExtension::getDependencies

ReflectionExtension::getFunctions

ReflectionExtension::getINIEntries

ReflectionExtension::getName

ReflectionExtension::getVersion

ReflectionExtension::info

ReflectionExtension::isPersistent

ReflectionExtension::isTemporary

ReflectionExtension::__clone

ReflectionExtension::__construct

ReflectionExtension::__toString

ReflectionFunction (class)

ReflectionFunction::export

ReflectionFunction::getClosure

ReflectionFunction::invoke

ReflectionFunction::invokeArgs

ReflectionFunction::isDisabled

ReflectionFunction::__construct

ReflectionFunction::__toString

ReflectionFunctionAbstract (class)

ReflectionFunctionAbstract::getClosureScopeClass

ReflectionFunctionAbstract::getClosureThis

ReflectionFunctionAbstract::getDocComment

ReflectionFunctionAbstract::getEndLine

ReflectionFunctionAbstract::getExtension

ReflectionFunctionAbstract::getExtensionName

ReflectionFunctionAbstract::getFileName

ReflectionFunctionAbstract::getName

ReflectionFunctionAbstract::getNamespaceName

ReflectionFunctionAbstract::getNumberOfParameters

ReflectionFunctionAbstract::getNumberOfRequiredParameters

ReflectionFunctionAbstract::getParameters

ReflectionFunctionAbstract::getReturnType

ReflectionFunctionAbstract::getShortName

ReflectionFunctionAbstract::getStartLine

ReflectionFunctionAbstract::getStaticVariables

ReflectionFunctionAbstract::hasReturnType

ReflectionFunctionAbstract::inNamespace

ReflectionFunctionAbstract::isClosure

ReflectionFunctionAbstract::isDeprecated

ReflectionFunctionAbstract::isGenerator

ReflectionFunctionAbstract::isInternal

ReflectionFunctionAbstract::isUserDefined

ReflectionFunctionAbstract::isVariadic

ReflectionFunctionAbstract::returnsReference

ReflectionFunctionAbstract::__clone

ReflectionFunctionAbstract::__toString

ReflectionGenerator (class)

ReflectionGenerator::getExecutingFile

ReflectionGenerator::getExecutingGenerator

ReflectionGenerator::getExecutingLine

ReflectionGenerator::getFunction

ReflectionGenerator::getThis

ReflectionGenerator::getTrace

ReflectionGenerator::__construct

ReflectionMethod (class)

ReflectionMethod::export

ReflectionMethod::getClosure

ReflectionMethod::getDeclaringClass

ReflectionMethod::getModifiers

ReflectionMethod::getPrototype

ReflectionMethod::invoke

ReflectionMethod::invokeArgs

ReflectionMethod::isAbstract

ReflectionMethod::isConstructor

ReflectionMethod::isDestructor

ReflectionMethod::isFinal

ReflectionMethod::isPrivate

ReflectionMethod::isProtected

ReflectionMethod::isPublic

ReflectionMethod::isStatic

ReflectionMethod::setAccessible

ReflectionMethod::__construct

ReflectionMethod::__toString

ReflectionObject (class)

ReflectionObject::export

ReflectionObject::__construct

ReflectionParameter (class)

ReflectionParameter::allowsNull

ReflectionParameter::canBePassedByValue

ReflectionParameter::export

ReflectionParameter::getClass

ReflectionParameter::getDeclaringClass

ReflectionParameter::getDeclaringFunction

ReflectionParameter::getDefaultValue

ReflectionParameter::getDefaultValueConstantName

ReflectionParameter::getName

ReflectionParameter::getPosition

ReflectionParameter::getType

ReflectionParameter::hasType

ReflectionParameter::isArray

ReflectionParameter::isCallable

ReflectionParameter::isDefaultValueAvailable

ReflectionParameter::isDefaultValueConstant

ReflectionParameter::isOptional

ReflectionParameter::isPassedByReference

ReflectionParameter::isVariadic

ReflectionParameter::__clone

ReflectionParameter::__construct

ReflectionParameter::__toString

ReflectionProperty (class)

ReflectionProperty::export

ReflectionProperty::getDeclaringClass

ReflectionProperty::getDocComment

ReflectionProperty::getModifiers

ReflectionProperty::getName

ReflectionProperty::getValue

ReflectionProperty::isDefault

ReflectionProperty::isPrivate

ReflectionProperty::isProtected

ReflectionProperty::isPublic

ReflectionProperty::isStatic

ReflectionProperty::setAccessible

ReflectionProperty::setValue

ReflectionProperty::__clone

ReflectionProperty::__construct

ReflectionProperty::__toString

ReflectionType (class)

ReflectionType::allowsNull

ReflectionType::isBuiltin

ReflectionType::__toString

ReflectionZendExtension (class)

ReflectionZendExtension::export

ReflectionZendExtension::getAuthor

ReflectionZendExtension::getCopyright

ReflectionZendExtension::getName

ReflectionZendExtension::getURL

ReflectionZendExtension::getVersion

ReflectionZendExtension::__clone

ReflectionZendExtension::__construct

ReflectionZendExtension::__toString

Reflector (interface)

Reflector::export

Reflector::__toString

字符串 | String

标记生成器 | Tokenizer

变量 | Variables

TensorFlow Guide

Storm入门教程

Hibernate 教程

ReflectionParameter::isOptional

ReflectionParameter::isOptional

(PHP 5 >= 5.0.3, PHP 7)

ReflectionParameter :: isOptional - 检查是否可选

描述

public bool ReflectionParameter::isOptional ( void )

检查参数是否可选。

参数

该功能没有参数。

返回值

如果该参数是可选则返回TRUE ，否则返回FALSE

← ReflectionParameter::isDefaultValueConstant

ReflectionParameter::isPassedByReference →