从PHP的变量参数调用构造函数 [英] Call a constructor from variable arguments with PHP

问题描述

我有一个接受变量参数的函数，我从 func_get_args（）获得。

需要调用具有这些参数的构造函数。

使用 call_user_func ，您可以使用数组调用函数的参数，但是如何从它调用构造函数呢？我不能只是传递参数数组;

解决方案

对于PHP< 5.3如果不先用 call_user_func_array 创建一个类的实例，就不容易做到。但是， 反射 这很不重要：

  $ reflection = new ReflectionClass（'yourClassName'）; 
 $ instance = $ reflection-> newInstanceArgs（$ yourArrayOfConstructorArguments）; 
  

I have a function that takes variadic arguments, that I obtain from func_get_args().

This function needs to call a constructor with those arguments. However, I don't know how to do it.

With call_user_func, you can call functions with an array of arguments, but how would you call a constructor from it? I can't just pass the array of arguments to it; it must believe I've called it "normally".

Thank you!

解决方案

For PHP < 5.3 it's not easily doable without first creating an instance of the class with call_user_func_array. However with Reflection this is pretty trivial:

$reflection = new ReflectionClass( 'yourClassName' );
$instance = $reflection->newInstanceArgs( $yourArrayOfConstructorArguments );

这篇关于从PHP的变量参数调用构造函数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！