PHP class and function

[lucerias]

Below is the sample code of .php file, firstly, $CustomerClass is defined as a class called Customer, which is defined in Customer.php and then for $CustomerClass->Save(), i don't understand because Save() is a function inside Save.php file but not a function under Customer class, why we can define like that and what is the meaning of that? Thank you.

require_once('include/Customer.php');
require_once('include/Save.php'); 
$CustomerClass = New Customer();
$CustomerClass->Save();

[Caesar]

[code]<?php

  class myclass {

    function funkshun() {

    $currtime = time();
    $currdate = date("M d, Y", $currtime);

    echo"$currdate";
    }
   
  }

  $c = new myclass;
  $c->funkshun();

?>[/code]

Keep in mind, there are other methods, approaches, and options concerning OOP. I am trying to make the example as simplistic as possible. Hope that helps.

[lucerias]

I understand what you want to say, but you call a function belongs to its class, this is typical OO working principle and my question is how come the existing code i saw calls a function not belong to its class but under a different .php file. Thank you.