In PHP 5 can I instantiate a class dynamically?

Question

Is it possible to dynamically instantiate a class using a variable? For example is something like this possible in PHP?

class foo
{
    public $something;
}

$class_name = "foo";

$f = new $class_name();

I disagree that this is not a real question. First of all it is grammatically a real question, secondly it has a definite answer with possibility of elaboration, thirdly it is easy to tell what is being asked, which is demonstrated by that fact that all the answers are essentially the same. While it is true that this, my first question on SO, was somewhat of a blunder, still to those who aren't able to randomly guess the correct syntax on their first try will benefit from a clear and searchable post on the subject. — Bijou Trouvaille, Dec 04 '13 at 16:28

score 45 · Accepted Answer · answered Jun 24 '10 at 18:16

45

That should work, yes.

You can also do:

$f = new $class($arg1,$arg2);

answered Jun 24 '10 at 18:16

Chris Kloberdanz

score 10 · Answer 2 · edited Nov 12 '16 at 19:15

10

Yes, this code will work fine.

edited Nov 12 '16 at 19:15

Undo

answered Jun 24 '10 at 18:16

timdev

score 4 · Answer 3 · answered Jun 24 '10 at 18:17

4

In PHP 5 can I instantiate a class dynamically?

Yes you can, your code should work fine.

answered Jun 24 '10 at 18:17

Sarfraz

score 2 · Answer 4 · answered Jun 24 '10 at 18:59

2

Yes of course you can instantiate using dynamic names;

answered Jun 24 '10 at 18:59

Muneer

4 Answers4