<?php

class TextClass{

    function __construct(){
        $file_contents = file_get_contents("file.txt");
        print $file_contents;
    }
}

class HelperClass{

    public $file = "file.txt";

    function load_data($data){
        file_put_contents($this->file, $data);
    }
}

class MainClass{

    public $obj;
    public $data;

    function __construct($data) {
        $this->data = $data;
    }

    function __wakeup(){
        if(isset($this->obj)){
            $this->obj->load_data($this->data);
        }
    }


$o = new MainClass("");
echo serialize($o);

?>