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PHP Object-Oriented PHP Basics (Retired) Inheritance, Interfaces, and Exceptions Final Challenge

is my method of returning value wrong?

I think, i am doing right but it seem to be wrong. What am i missing?

fish.php
<?php

class Fish
{
    public $common_name;
    public $flavor;
    public $record_weight;

    function __construct($name, $flavor, $record){
        $this->common_name = $name;
        $this->flavor = $flavor;
        $this->record_weight = $record;
    }

    public function getInfo() {
        $output  = "The {$this->common_name} is an awesome fish. ";
        $output .= "It is very {$this->flavor} when eaten. ";
        $output .= "Currently the world record {$this->common_name} weighed {$this->record_weight}.";
        return $output;
    }
}
class Trout extends Fish{
  public $species;
  function __construct($name,$flavor,$record,$species){
    parent::__construct($name, $flavor, $record);
    $this->species = $species;
  }
  public function getInfo(){
    return $common_name,$flavor,$record_weight,$species; 
  }
}
$brook_trout = new Trout("Trout","Delicious","14 pounds 8 ounces","Brook");
?>

remember that the construct function only helps you to set the parammetters in your call

so far you made an instance of your class but didnt call the method and set the parammetters there try this:

<?php
//This is the instance of your class
$brook_trout = new Trout;
// And here you call your method and set your parammetters
$brook_trout->getInfo("Trout","Delicious","14 pounds 8 ounces","Brook");
?>