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PHP Object-Oriented PHP Basics Building a Collection Collection Objects

Posted by Damian Toczek
Damian Toczek
4,471 Points

How to return an collection array of house objects that match the passed color parameter.

This is bit confusing because i don't know why it's not working. I'm getting each house and then compare the walls/roofs with the passed color. If it's true it adds the house to the output array.

index.php 
<?php

// add code below this comment
class Subdivision
{
  public $output = array();
    public $houses = array();
  public function filterHouseColor($color)
  {
    foreach ($this->houses as $house){
      if($this->roof_color === $color || $this->wall_color === $color){
        $this->output[] = $house;
      }
    }
    return $this->output;
  }

}
?>

This part here was wrong:

if($this->roof_color === $color || $this->wall_color === $color){

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there, Damian Toczek ! You're doing terrific and you're super close! Take a look at this line:

foreach ($this->houses as $house)

This is set up just fine. But it also means that for every iteration through that collection, the individual item is assigned to the variable $house. Then in the very next line, you set up your if statement just brilliantly, but you're comparing the roof_color and wall_color of this. You should be comparing the roof_color and wall_color of the $house.

Making that change will cause this to pass. Hope this helps! :sparkles:

Damian Toczek
Damian Toczek
4,471 Points

Hi, thank you, I've already noticed that.