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

Luis Alveiro Martinez Botello
Luis Alveiro Martinez Botello
2,726 Points
Posted by Luis Alveiro Martinez Botello
Luis Alveiro Martinez Botello
2,726 Points

Could anyone help me to find my error in this exercise. Create a new Trout object named $brook_trout?

<?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 " . $this->common_name . " Flavor " . $this->flavor . "Record Weight: " . $this->record_weight . "species: "

. $this->species; }

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

}

?>

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 " . $this->common_name . " Flavor " . $this->flavor . "Record Weight: " . $this->record_weight . "species: "  
. $this->species;
      }


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

}

?>

3 Answers

Darren Joy
Darren Joy
19,573 Points
Darren Joy
Darren Joy
19,573 Points

I just finished this same one earlier this week. I don't remember adding the = '' to this:

public $species = '';

I just had it as:

public $species;

That seemed to be enough to extend the class to include this new property.

It get's handled as to what it would contain in the function __construct (i.e the $this->species = $species)

When you create the $brook_trout you are giving it the species 'brook'..

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

The concatenate for output should be +=.

Brooktrout also belongs outside the last curly braces.

Ted Sumner
Ted Sumner
Courses Plus Student 17,967 Points

Looking back at other code, the .= works. I might be confusing languages.

the Brook_trout definitely goes outside the last }, though.