将参数从php中的数组传递给构造函数

问题描述：

通常，如果我想传递参数从$ myarray到$ somefunction我可以在php使用

Normally, if I want to pass arguments from $myarray to $somefunction I can do this in php using

call_user_func_array($somefunction, $myarray);

然而，当希望调用的函数是对象的构造函数时，这不起作用。对于相当明显的原因，它不工作：

However this does not work when the function one wishes to call is the constructor for an object. For fairly obvious reasons it does not work to do:

$myobj = new call_user_func_array($classname, $myarray);

是否有一些相当优雅的工作 b $ b

is there something fairly elegant that does work ?

答

您可以使用Reflection API：

You can use the Reflection API:

a href =http://ua2.php.net/manual/en/reflectionclass.newinstanceargs.php =nofollow noreferrer> ReflectionClass :: newInstanceArgs - 根据给定的参数创建新的类实例。

示例：

$reflector = new ReflectionClass('Foo');
$foo = $reflector->newInstanceArgs(array('foo', 'bar'));