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PHP Object-Oriented PHP Basics Building a Collection Collection Objects

can someone assist me can someone assist me

can someone assist me with this code i dont know how to tackle it

index.php
<?php

// add code below this comment
class Subdivision{

  public  $houses;

  public function filterHouseColor($color){

    return 


}
}
?>
artkay
artkay
5,401 Points

I thinks something like this should do:

<?php

// add code below this comment
class Subdivision {
  public $houses = [];  // Empty array for House objects

  /**
   * Returns all Houses that are matching passed color.
   */
  public function filterHouseColor($color) {
     $collection = []; // Empty array to store matched objects

     foreach ($this->houses as $house) { // Loop through all objects in $houses
       if ($house->roof_color == $color || $house->wall_color == $color) {
          $collection[] = $house; // If the color matches - add the object to our collection
       }
     }

     return $collection;
  }

}
?>