PHP OOP：使用字符串作为别名的标识符

I have a class somewhere in some namespace. Say:

namespace space;
class MyClass(){}

What i want to do is to create an alias for this class without extending etc. Oherenly thing I have is a string which contains class name. What I would like to do is:

$className='MyClass';
use '\space\'.$className as 'space_'.$classname;

Is it possible somehow? Because "use" keyword expects class identifier's literal string token (expecting identifier (T_STRING)) and usual approach, like with variables (say, call function named in a variable by simply calling $functionName()), as described, for example, here, doesn't help.

UPD: Using eval doesn't work for that, of course.

So it seems you are looking for class_alias

class_alias('space\MyClass', 'space_MyClass');

You could use the class_alias function.

 class_alias('space\\' . $className, 'space_' . $classname);

Or if you don't want to use this, you could also use a var like

$classname = 'space\\' . $className;
$class = new $classname()

<?php

namespace animal;

class Cats
{

    static function Says()
    {
        echo "This is working";
    }

}
$className = "Cats";

$classname = 'animal\\' . $className;
$class = new $classname();

echo $class->Says();


?>