ReflectionFunction::__construct

(PHP 5)

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.

更新日志

版本	说明
5.3.0	`name` can now be a closure.

范例

Example #1 ReflectionFunction::__construct() example

  <?php
 
 function  counter1 ()
{
    static  $c  =  0 ;
    return ++ $c ;
}

 
 $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 class
 dumpReflectionFunction (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:
 ''
---> Static variables: array (
  'c' => 0,
)===> The user-defined function '{closure}'
     declared in Z:\reflectcounter.php
     lines 18 to 23
---> Documentation:
 ''
---> Static variables: array (
  'd' => 0,
)

参见

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