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

i cant seem to get this passing please help me where am i wrong?

i am creating a new trout object

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, $species);
  $this->species = $species;
  }

  public function getinfo() {
   return $this->species . " " . $this->common_name . " tastes " . $this->flavor . ". The record " . $this->species . " " . $this->common_name . " weighed " . $this->record_weight . "."; ".";
  }
    $brook_trout = new Trout("Trout", "Delicious", "14 pounds 8 ounces", "Brook");
}
?>

1 Answer

Hi!

You got two errors in your code, let us look at the first error:

Line 26

<?php
    parent::__construct($name, $flavor, $record, $species);
?>

The parent constructor method expects three arguments ($name, $flavor and $record), the fourth argument you try to pass ($species) will be ignored and is not required.

Let us look at the second error:

Line 30 to 34

<?php
    public function getinfo() {
        return $this->species . " " . $this->common_name . " tastes " . $this->flavor . ". The record " . $this->species . " " . $this->common_name . " weighed " . $this->record_weight . "."; ".";
    }
    $brook_trout = new Trout("Trout", "Delicious", "14 pounds 8 ounces", "Brook");
}
?>

You repeat the variables $species and $common_name and you can not instantiate a class within the same class as you try to instantiate, you need to create the instance to that class out of that class, and you repeated the endpoint ".";

The code would look like this:

<?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 $this->species . " " . $this->common_name . " tastes " . $this->flavor . ". The record weighed " . $this->record_weight . ".";
    }
}

$trout = new Fish("Trout", "Delicious", "14 pounds 8 ounces");
echo $trout->getInfo();
// The Trout is an awesome fish. It is very Delicious when eaten. Currently the world record Trout weighed 14 pounds 8 ounces. 

$brook_trout = new Trout("Trout", "Delicious", "14 pounds 8 ounces", "Brook");
echo $brook_trout->getinfo();
// Brook Trout tastes Delicious. The record weighed 14 pounds 8 ounces.
?>

I hope my explanation has helped you, continues to improve and learn with enthusiasm!

thanks hey,got it.