Question

I can’t get dynamic instantiating of classes in PHP to work when my files are namespaced.
PHP seems to be completely ignorant of the use keywords on top of my files, as I try to instantiate classes dynamically based upon the value of a variable.

Is there a good solution to this, besides hardcoding the namespace when dynamically instantiating classes?

Here’s some quick samples to show what I mean:

Code new two('one'); results in that the class one isn’t found with the below two files being included:

File1:

namespace uno;
use dos;

class one {
    function __construct($what) {
        new $what;
    }
}

File2:

namespace dos;
class two { }

File 3:

new one('two'); // Doesn't work!

Answer 1

Either full-qualified

new \uno\one('two');

or defined by use

use uno\one;
new one('two');

or (relative) qualified (but that makes not much sense with a one-level namespace)

use uno;
new uno\one('two');

With deeper namespace it makes more sense

use path\to\myNamespace; 
        new myNamespace\foo\BarClass;

or put it in the same namespace

namespace uno;
new one('two');

See http://php.net/language.namespaces.rules