ReflectionFunction 类

(PHP 5, PHP 7)

简介

ReflectionFunction 类报告了一个函数的有关信息。

类摘要

ReflectionFunction extends ReflectionFunctionAbstract implements Reflector {
/* 常量 */
const integer IS_DEPRECATED = 262144 ;
/* 属性 */
public $name ;
/* 方法 */
public __construct ( mixed $name )
public static string export ( string $name [, string $return ] )
public Closure getClosure ( void )
public mixed invoke ([ mixed $parameter [, mixed $... ]] )
public mixed invokeArgs ( array $args )
public bool isDisabled ( void )
public string __toString ( void )
/* 继承的方法 */
final private void ReflectionFunctionAbstract::__clone ( void )
public ReflectionClass ReflectionFunctionAbstract::getClosureScopeClass ( void )
public object ReflectionFunctionAbstract::getClosureThis ( void )
public string ReflectionFunctionAbstract::getDocComment ( void )
public int ReflectionFunctionAbstract::getEndLine ( void )
public ReflectionExtension ReflectionFunctionAbstract::getExtension ( void )
public string ReflectionFunctionAbstract::getExtensionName ( void )
public string ReflectionFunctionAbstract::getFileName ( void )
public string ReflectionFunctionAbstract::getName ( void )
public string ReflectionFunctionAbstract::getNamespaceName ( void )
public int ReflectionFunctionAbstract::getNumberOfParameters ( void )
public int ReflectionFunctionAbstract::getNumberOfRequiredParameters ( void )
public array ReflectionFunctionAbstract::getParameters ( void )
public ReflectionType ReflectionFunctionAbstract::getReturnType ( void )
public string ReflectionFunctionAbstract::getShortName ( void )
public int ReflectionFunctionAbstract::getStartLine ( void )
public array ReflectionFunctionAbstract::getStaticVariables ( void )
public bool ReflectionFunctionAbstract::hasReturnType ( void )
public bool ReflectionFunctionAbstract::inNamespace ( void )
public bool ReflectionFunctionAbstract::isClosure ( void )
public bool ReflectionFunctionAbstract::isDeprecated ( void )
public bool ReflectionFunctionAbstract::isGenerator ( void )
public bool ReflectionFunctionAbstract::isInternal ( void )
public bool ReflectionFunctionAbstract::isUserDefined ( void )
public bool ReflectionFunctionAbstract::isVariadic ( void )
public bool ReflectionFunctionAbstract::returnsReference ( void )
abstract public void ReflectionFunctionAbstract::__toString ( void )
}

属性

name

函数的名称。只读，并在尝试赋值的时候会抛出 ReflectionException。

预定义常量

ReflectionFunction 修饰符

ReflectionFunction::IS_DEPRECATED

指示了不建议使用的函数。

Table of Contents

User Contributed Notes

Lorenz R.S. 12-Aug-2011 10:24
Here is a concise example of ReflectionFunction usage for Parameter Reflection / introspection (e.g. to automatically generate API descriptions)

<?php
$properties = $reflector->getProperties();
$refFunc = new ReflectionFunction('preg_replace');
foreach( $refFunc->getParameters() as $param ){
    //invokes ■ReflectionParameter::__toString
    print $param;
}
?>

prints:

Parameter #0 [ <required> $regex ]
Parameter #1 [ <required> $replace ]
Parameter #2 [ <required> $subject ]
Parameter #3 [ <optional> $limit ]
Parameter #4 [ <optional> &$count ]