<?php
class Math
{
public $v;
public $vi;
public $a;
public $s;
public $t;
function mars($v, $t, $a)
{
$s = $v * $t + 0.5 * $a * $t * $t;
echo $s . "<br>";
}
function __destruct()
{
echo "yooooooooooooo";
}
}
$physics = new Math();
$physics->mars(10, 10, 0);
$physics->mars(0, 5, 10);
$physics->mars(10, 2, -5);
