ReflectionFunctionAbstract::getClosureUsedVariables

    (PHP 8 >= 8.1.0)

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

    说明

    publicReflectionFunctionAbstract::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

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