# ReflectionFunction::invokeArgs

(PHP 5 >= 5.1.2, PHP 7, PHP 8)

ReflectionFunction::invokeArgs — Invokes function args

### 说明

public ReflectionFunction::invokeArgs(array `$args`): mixed

Invokes the function and pass its arguments as array.

### 参数

`args`

  The passed arguments to the function as an array, much like call_user_func_array() works.

### 返回值

Returns the result of the invoked function

### 更新日志

版本 | 说明
--- | ---
8.0.0 | `args` keys will now be interpreted as parameter names, instead of being silently ignored.

### 示例

示例 #1 ReflectionFunction::invokeArgs() example

`<?php
function title($title, $name)
{
return sprintf("%s. %s\r\n", $title, $name);
}
$function = new ReflectionFunction('title');
echo $function->invokeArgs(array('Dr', 'Phil'));
?>`

以上示例会输出：

    Dr. Phil

示例 #2 ReflectionFunction::invokeArgs() with references example

`<?php
function get_false_conditions(array $conditions, array &$false_conditions)
{
foreach ($conditions as $condition) {
if (!$condition) {
$false_conditions[] = $condition;
}
}
}
$function_ref = new ReflectionFunction('get_false_conditions');
$conditions = array(true, false, -1, 0, 1);
$false_conditions = array();
$function_ref->invokeArgs(array($conditions, &$false_conditions));
var_dump($false_conditions);
?>`

以上示例会输出：

    array(2) {
      [0]=>
      bool(false)
      [1]=>
      int(0)
    }

### 注释

> 注意:

> 如果函数有参数需为引用，那么它们必须以引用方式传入。

### 参见

- ReflectionFunction::invoke() - Invokes function
- ReflectionFunctionAbstract::getNumberOfParameters() - 获取参数数目
- __invoke()
- call_user_func_array() - 调用回调函数，并把一个数组参数作为回调函数的参数

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