how do i use the __constructor?

Question

im on the 1st task.

fish.php

<?php

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

    public function getInfo() {
      return "A {$this->common_name} is an {$this->flavor} flavored fish. The world record weight is {$this->record_weight}.";
    }
}

?>

Answer 1 · 2017-10-18T10:59:02Z

October 18, 2017 10:59am

So I've posted below an example of how to use a construct function in php in the current Challenge be aware that inside a construct its always best to validate the information being sent. In this example I've used a basic strval check on our variables since the data that should be stored should be a string. This is so that our class doesn't get confused if a developer passes the object another datatype. There are other more advanced ways to validate our parameters inside our construct function but for this example its not really needed, since its just getting you used to object oriented programming. I've posted a solution to the problem so you can compare your code and understand how to properly write a constructor function, hope it helps :)

Solution:

<?php

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

    public function __construct($name, $flavor, $record){

      // Set Common Name to our Given Name //
      $this->common_name = strval($name);

      // Set Flavor to our Given Flavor //
      $this->flavor = strval($flavor);

      // Set Record Weight to our given Record Weight //
      $this->record_weight = strval($record);

    }

    public function getInfo() {
      return "A {$this->common_name} is an {$this->flavor} flavored fish. The world record weight is {$this->record_weight}.";
    }
}

// Create new Fish Object //
$bass = new Fish("Largemouth Bass", "Excellent", "22 pounds 5 ounces");

// Display Fish Information //
echo $bass->getInfo();

?>

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Tim Cosson

Tim Cosson

how do i use the __constructor?

1 Answer

Shayne Laufenberg

Shayne Laufenberg