How do I use a function from another class?

[jamesxg1]

Hiya peeps!

 

I was wondering how I could use a function from one class in another EG.

 

class_file_one.php

class a {
function a() {
return true;
}
}

 

class_file_two.php

 

class b {
function b() {
if($this->a()) {
return 'it works';
}
}
}

 

The classes are in completely different pages.

 

Many thanks,

 

James.

[jamesxg1]

I'm sure in some way you have to use the

extends

but I'm not sure how LOL!

 

Many thanks,

 

James.

[ignace]

It depends if both are related then you could do:

 

require 'a.php';

class b extends a

 

If they are not then you must ask yourself will a exist outside of b? Yes then

 

require 'a.php';

class b {
  function __construct(a $a)

 

otherwise:

 

require 'a.php';

class b {
  function __construct() {
      $this->a = new a();
  }
}