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

Robbie Thomas
Robbie Thomas
31,093 Points
Posted by Robbie Thomas
Robbie Thomas
31,093 Points

Code Challenge 7/7

What am I doing wrong?

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

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

?>

5 Answers

Ted Sumner
Ted Sumner
Courses Plus Student 17,967 Points

I see several things. Remember PHP is case sensitive. You create Fish, but extend fish. You do not concatenate $this->species and $this->common_name in your return. Actually, you are missing most of your concatenation. If I remember right, this code passes:

<?php
return "$this->species $this->common_name tastes $this->flavor.  The record $this->species $this->common_name is $this->record_weight.";

I do not use periods to concatenate because PHP will evaluate the variables when enclosed with a double quote. It will not work with single quotes. You can also do this:

<?php
return $this->species . $this->common_name . ' tastes ' . $this->flavor . '.  The record ' . $this->species . $this->common_name . ' is ' . $this->record_weight . '.';

In the second example you can use either double or single quotes.

Robbie Thomas
Robbie Thomas
31,093 Points
Robbie Thomas
Robbie Thomas
31,093 Points

Tried that, I get this: Bummer! Did you add a getInfo method to the Trout class?

Strange.

Ted Sumner
PLUS
Ted Sumner
Courses Plus Student 17,967 Points
Ted Sumner
Ted Sumner
Courses Plus Student 17,967 Points

I am sorry I was not clear. You need to fix the return in the getInfo() The getInfo would look like this:

<?php
function getInfo() {
  return $this->species . $this->common_name . ' tastes ' . $this->flavor . '.  The record ' . $this->species . $this->common_name . ' is ' . $this->record_weight . '.';
}

The rest of the code look ok to me. If you get a bummer please post the new code that you tried.

Robbie Thomas
Robbie Thomas
31,093 Points
Robbie Thomas
Robbie Thomas
31,093 Points

Your code on: https://teamtreehouse.com/community/oop-php-challenge-6-of-7-concatenation-of-method worked out well.

Thanks for the help, I need to do some more research on PHP concatenation (spelled wrong likely). Plus, I should have made the subject 6/7 opposed to 7/7, my mistake there.

MUZ140742 Takura Masunda
MUZ140742 Takura Masunda
5,737 Points
MUZ140742 Takura Masunda
MUZ140742 Takura Masunda
5,737 Points 
<?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;
  }   
  function getInfo() {
  return $this->species . $this->common_name . ' tastes ' . $this->flavor . '.  The record ' . $this->species . $this->common_name . ' is ' . $this->record_weight . '.';
}
  }

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

?>
MUZ140742 Takura Masunda
MUZ140742 Takura Masunda
5,737 Points

This worked for me from the first challenge to challenge 7

Ted Sumner
Ted Sumner
Courses Plus Student 17,967 Points

Excellent. I formatted your code so it is readable.