[SOLVED] Nested classes

[Yesideez]

Is this possible? For example,

 

class outer {
  function out() {
    class inner {
      function in() {
        return 'here!';
      }
    }
    $doit=new inner();
    return $this->doit->two();
  }
}
$test=new outer();
echo $test->out();

 

I get no error when defining the second class but I can't call it.

[Yesideez]

My bad - head in a spin and I got muddled.

 

Been using classes all day at work in a pre-made environment and trying to learn them at home.

[premiso]

I do not think it is possible.

 

You can use class outer extends inner {

 

As far as doing that, yea doubtful. You can however include a class from another file.

 

class outer {
  function out() {
     include('class.inner.php');       

    $doit=new inner();
    return $this->doit->two();
  }
}
$test=new outer();
echo $test->out();

 

Should work. You could also just define that class on the same page and that should work as well.

 

EDIT:

I do not think you had the function "two" defined in the inner class (I think that is what you caught and solved it). Just decided to point it out

 

EDITEDIT:

Fatal error: Class declarations may not be nested in C:\wamp\www\test.php on line 4

 

Returned that when trying to nest

[rhodesa]

technically speaking, it's legal (i think), as long as you only try to declare the inner class once. the proper way to do what you want though is like this:

<?php
class outer {
 function out() {
   $this->doit=new inner();
   return $this->doit->in();
 }
}
class inner {
 function in() {
   return 'here!';
 }
}
$test=new outer();
echo $test->out();
?>

 

edit: I take it back, nesting them produces a Fatal Error

[Maq]

There's no need to have a nested class.  That won't even work.  You're supposed to use extend, which is what it was created for.  Or, if you need an interface, you use implements.

[Yesideez]

Thanks guys, making classes are very new to me and as I've recently started a new job using PHP I'm using them (as mentioned) in an environment already created - just modifying existing code. It's given me many headaches so far as seeing that my website has a "web1.0" look with all tables I'm re-designing the lot with classes and DIVs.

 

I've managed to nest classes by including a PHP file inside a class - works fine.

[rhodesa]

I've managed to nest classes by including a PHP file inside a class - works fine.

make sure you use require_once() when including, that way it doesn't get included more then once