Php/docs/reflectionfunction.construct

• PHP Manual
• ReflectionFunction
• Constructs a ReflectionFunction object

ReflectionFunction::__construct

(PHP 5, PHP 7)

ReflectionFunction::__construct — Constructs a ReflectionFunction object

说明

public ReflectionFunction::__construct ( mixed $name )

Constructs a ReflectionFunction object.

参数

name

The name of the function to reflect or a closure.

返回值

没有返回值。

错误／异常

A ReflectionException if the name parameter does not contain a valid function.

范例

Example #1 ReflectionFunction::__construct() example

<?php/** * A simple counter * * @return    int */function counter1(){    static $c = 0;    return ++$c;}/** * Another simple counter * * @return    int */$counter2 = function(){    static $d = 0;    return ++$d;};function dumpReflectionFunction($func){    // Print out basic information    printf(        "\n\n===> The %s function '%s'\n".        "     declared in %s\n".        "     lines %d to %d\n",        $func->isInternal() ? 'internal' : 'user-defined',        $func->getName(),        $func->getFileName(),        $func->getStartLine(),        $func->getEndline()    );    // Print documentation comment    printf("---> Documentation:\n %s\n", var_export($func->getDocComment(), 1));    // Print static variables if existant    if ($statics = $func->getStaticVariables())    {        printf("---> Static variables: %s\n", var_export($statics, 1));    }}// Create an instance of the ReflectionFunction classdumpReflectionFunction(new ReflectionFunction('counter1'));dumpReflectionFunction(new ReflectionFunction($counter2));?>

以上例程的输出类似于：

===> The user-defined function 'counter1'
     declared in Z:\reflectcounter.php
     lines 7 to 11
---> Documentation:
 '/**
 * A simple counter
 *
 * @return    int
 */'
---> Static variables: array (
  'c' => 0,
)


===> The user-defined function '{closure}'
     declared in Z:\reflectcounter.php
     lines 18 to 23
---> Documentation:
 '/**
 * Another simple counter
 *
 * @return    int
 */'
---> Static variables: array (
  'd' => 0,
)

参见

• ReflectionMethod::__construct() - ReflectionMethod 的构造函数
• Constructors