Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Pedro nieto Sanchez
Pedro nieto Sanchez
28,169 Points
Posted by Pedro nieto Sanchez
Pedro nieto Sanchez
28,169 Points

Please I need help here in this string. Or maybe I am not getting right the question.

I have copied the string exactly the same but still i keep getting the message that says: that I am not usint the common_name. Could anyone help me?

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 $this->species . " ". $this->name . "tastes ". $this->flavor . ". The record ". $this->species . " ". $this->name . " weighted ". $this->record . ".";
  }

}

$brook_trout = new Trout("Trout","Delicious","14 pounds 8 ounces","Brook");
echo $brook_trout->getInfo();
?>

2 Answers

Ryan Field
PLUS
Ryan Field
Courses Plus Student 21,242 Points
Ryan Field
Ryan Field
Courses Plus Student 21,242 Points

Hey, Pedro. Since the class Trout extends Fish, you'll want to use the same attributes as its parent class. Right now you have:

<?php
public function getInfo(){
  return $this->species . " ". $this->name . "tastes ". $this->flavor . ". The record ". $this->species . " ". $this->name . " weighted ". $this->record . ".";
  }
?>

but you should be using $this->common_name and $this->record_weight.

Pedro nieto Sanchez
Pedro nieto Sanchez
28,169 Points
Pedro nieto Sanchez
Pedro nieto Sanchez
28,169 Points

You are right, i am sure the teamtreehouse put that example for people like me to fall in the trick. :)

mereigh
mereigh
9,211 Points
mereigh
mereigh
9,211 Points

Hey Pedro! I struggled with this one for a bit and ultimately decided returning a full string was too long and complex. Here is a simpler way to complete this task:

<?php

class Trout extends Fish {
    public $species;

    public function __construct($name, $flavor, $record, $species) {
    parent::__construct($name, $flavor, $record);
    $this->species = $species;
    }

    public function getInfo() {
        $output  = "{$this->species} {$this->common_name} tastes {$this->flavor}. ";
        $output .= "The record {$this->species} {$this->common_name} weighed {this->record_weight}.";
        return $output;
    }
}   

?>