FAQ: Classes and Objects - Overloading Methods

This community-built FAQ covers the “Overloading Methods” exercise from the lesson “Classes and Objects”.

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FAQs on the exercise Overloading Methods

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The error code when inputting this code is incorrect. It says “The result of calling getInfo doesn’t quite match what we provided.” The issue, however, wasn’t within the getInfo() method. It was the period that I erroneously placed at the beginning of the second sentence, in order to end the first. The error should read something like “That’s not quite what it should say,” or something similar. I was breaking my brain trying to figure out what was wrong with getInfo().

<?php class Beverage { public $temperature; function getInfo() { return "This beverage is $this->temperature."; } } class Milk extends Beverage { function __construct() { $this->temperature = "cold"; } function getInfo() { return parent::getInfo() . ". I like my milk this way."; } }

I think that your problem is only the period in the string “. I like my…”, without the period your code is good.

class Beverage
{
    public $temperature;

    function getInfo()
    {
        return "This beverage is $this->temperature.";
    }
}

class Milk extends Beverage
{
    function __construct()
    {
        $this->temperature = "cold";
    }
    function getInfo()
    {
        return parent::getInfo() . " I like my milk this way.";
    }
}

$milk = new Milk();
echo $milk->getInfo();
1 Like

I thought overloading is when we define two or more functions with the same name but they each have a different set of parameters. But in the Beverage and Milk class the method getInfo() both have no parameters. Wouldn’t this be considered overriding and not overloading?

1 Like

Yes, you could be considering it like an overriding or maybe (IMHO) could be also considering it like an overwriting, because first you go to create a method in a main class and after you go to overwrite the same method in the subclass.

I think you are correct. The exercise seems to be an example of overriding instead of overloading.