<?php

//In PHP there are no structures
class Point {
    public $x, $y;
}

class Size {
    public $width, $height;
}

class Rect {
    public $point;
    public $size;
}

$rect = new Rect();
$rect->point = new Point();
$rect->point->x = 3;
$rect->point->y = 4;
$rect->size = new Size();
$rect->size->width = 10;
$rect->size->height = 12;

print_r($rect);