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Before we leave this display recipe
method I want to look at one more thing.

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Whenever you have a loop in a method,
it's a good place to evaluate

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00:00:09,770 --> 00:00:13,850
if there's something that could
be moved to its own method.

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00:00:13,850 --> 00:00:18,980
Listing our ingredients seems like
something that we could use elsewhere and

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00:00:18,980 --> 00:00:22,020
it would benefit from
being in its own method.

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00:00:22,020 --> 00:00:23,430
So let's go to the top of this class.

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00:00:25,830 --> 00:00:34,188
And we'll create a new public
static function, listIngredients.

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00:00:38,117 --> 00:00:41,178
We'll pass in an associative
array of ingredients.

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00:00:44,287 --> 00:00:50,620
Then we can initialize our output,
and return the output.

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00:00:54,830 --> 00:00:57,910
Now we can copy the foreach
loop from our display recipe.

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00:01:05,746 --> 00:01:10,492
We'll change the array to the ingredients
array that this method is accepting.

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00:01:12,761 --> 00:01:16,988
Now we need to modify our display
recipe method to call this new method.

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00:01:22,238 --> 00:01:24,864
Instead of using the keyword this,

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00:01:24,864 --> 00:01:30,740
we use self with double colons to call
another static method within this class.

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00:01:32,860 --> 00:01:36,768
We then pass the recipe
ingredients to the method.

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00:01:44,061 --> 00:01:45,769
Let's run our script again.

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00:01:48,251 --> 00:01:50,861
We see the recipe exactly
like we did before, but

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00:01:50,861 --> 00:01:54,440
this time the list of ingredients
is coming from its own method.

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00:01:55,600 --> 00:02:00,250
You're doing a wonderful job and
learning a lot, let's review.

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00:02:00,250 --> 00:02:04,730
A class is a way to group your data and
functionality together.

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00:02:05,740 --> 00:02:11,300
An object allows that data to
persist throughout your script.

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00:02:11,300 --> 00:02:14,230
If you're doing more than
one thing with that data,

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00:02:14,230 --> 00:02:17,370
you'll probably be creating an object.

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00:02:17,370 --> 00:02:22,760
We can also use a class to group
functionality without storing information.

25
00:02:22,760 --> 00:02:26,240
You can access this functionality
using a static method.

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00:02:27,480 --> 00:02:33,420
A static method can accept data, perform
its function, and return the results.

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00:02:33,420 --> 00:02:38,140
But it doesn't store anything
after the method is run.

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00:02:38,140 --> 00:02:41,700
Now that we have all the basics of
your class set up, are you ready for

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00:02:41,700 --> 00:02:42,320
some magic?