How to use a method across different PHP files(classes)

[JongMin]

Hi, 

Please consider the following:

 

 

--------------------------------------------------------------

Cool.php

--------------------------------------------------------------

 

<?php

    include_once "Common.class.php";

    include_once "Test.class.php";

 

    $common = new Common;

 

 

--------------------------------------------------------------

Common.class.php

--------------------------------------------------------------

 

<?php

 

class Common

{

    public blahblah;

 

    public function __construct()

    {

        blah blah

    }

 

    public function initSomething()

    {

         //Do something

    }

}

 

--------------------------------------------------------------

Test.class.php

--------------------------------------------------------------

 

<?php

 

class Test

{

 

    public function __construct()

    {

        initSomething(); // This is the method in the Common class and I want to use it here.

    }

}

 

In Test.class.php I want to use the initSomething() method in the Common class and in this case how do you normally archive this? 

 

Thanks in advance.

 

[Muddy_Funster]

That's not enough information to say how you would "normally" achieve this, you will need to provide the full context of what you are trying to achieve.  One way would be to extend the common class, but that's situation dependant, It could just be that your class structure is wrong.

[PravinS]

check inheritance

 

http://php.net/manual/en/language.oop5.inheritance.php

[ignace]

Don't use inheritance. Test is not a Common. Instead pass it through the constructor or a setter.

 

class Test {
  private $common;
  public function __construct(Common $common) {
    $common->initSomething();
  }
}

Edited August 9, 2013 by ignace

[Muddy_Funster]

...Test is not a Common....

 

How can you be so sure?

[ignace]

Years of experience.