For Clarification (don't look here if you haven't answered the last quiz for this class)

Question

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

$bass = new Fish("Largemouth Bass", "Excellent", "22 pounds 5 ounces");
?>

so basically in using constructor for creating an object

it will get its value from (sort of getter)

  function __construct($name, $flavor, $record) {
    $this->common_name = $name;
    $this->flavor = $flavor;
    $this->record_weight = $record;
  }

then throw the value to

  public $common_name;
  public $flavor;
  public $record_weight;

Am I understanding this correctly? thanks in advance.

Answer 1 · 2015-09-14T09:39:31Z

September 14, 2015 9:39am

I am not sure you really understand, so I will give you this explanation. I am only using $name for simplicity.

Each time you call the class you have a new instance of the class. What is neat about it, though is that you can have multiple instances of the same class at the same time. The constructor assigns a value for each argument and keeps track of them for the individual instances. Thus you reduce the amount of code you need dramatically. Using the challenge code:

<?php

$carp = new Fish ('carp');
$shark = new Fish ("shark");
$tuna = new Fish ('tuna');

echo $tuna->getInfo() . "<br>";
echo $carp->getInfo() . "<br>";
echo $shark->getInfo();

// displays
// tuna
// carp
// shark

The program kept track of each variable based on the instance. The constructor assigns the value of the variable to the method based on what is passed to the class.

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Ezekiel dela Peña

Ezekiel dela Peña

For Clarification (don't look here if you haven't answered the last quiz for this class)

1 Answer

Ted Sumner

Ted Sumner

Ezekiel dela Peña

Ezekiel dela Peña