<?php
class Investment
{
public $interest;
public $amount;
public $result;
function calculate($interest, $amount)
{
$this->result = $this->amount * $this->interest + $this->amount;
}
}
$investment = new Investment();
$investment->interest = 0.1;
$investment->amount = 250;
$investment->calculate($investment->interest, $investment->amount);
echo "Finally I calculated that from <br>" . $investment->amount . " \n if we have " . $investment->interest . " we will get " . $investment->result . ". <hr>";