ReflectionFunctionAbstract::getClosureUsedVariables

(PHP 8 >= 8.1.0)

ReflectionFunctionAbstract::getClosureUsedVariables — Returns an array of the used variables in the Closure

说明

public ReflectionFunctionAbstract::getClosureUsedVariables(): array

Returns an array of the used variables in the Closure.

参数

此函数没有参数。

返回值

Returns an array of the used variables in the Closure.

示例

示例 #1 ReflectionFunctionAbstract::getClosureUsedVariables() example

<?php

$one = 1;
$two = 2;

$function = function() use ($one, $two) {
static $three = 3;
};

$reflector = new ReflectionFunction($function);

var_dump($reflector->getClosureUsedVariables());
?>

以上示例的输出类似于：

array(2) {
  ["one"]=>
  int(1)
  ["two"]=>
  int(2)
}

参见