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One Solution

2:32 with Alena Holligan

Now that you've coded your solution to the practice problem, I'll show you how I did it. Remember, there are almost always more than one way to solve a problem.

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  • 0:00

    How did it go?

  • 0:01

    Were you able to complete the challenge?

  • 0:04

    If not, no worries, you can watch my solution compared to what you wrote and

  • 0:09

    then try the challenge again.

  • 0:11

    Let's review.

  • 0:12

    Step one, create a variable named hours and set it to the integer value of 40.

  • 0:18

    Variables start with the $ sign.

  • 0:21

    So $hours = 40.

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    Because this is an integer, we do not need to use quotation marks.

  • 0:30

    Step two, create a variable named productivity and

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    set it to the float value of 10.5.

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    $productivity = 10.5.

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    Again, with number values, we do not need to use quotation marks.

  • 0:47

    Step three, create a third variable named firstTotal and

  • 0:51

    set it equal to the value of multiplying hours by productivity.

  • 0:56

    $firstTotal = $hours * $productivity.

  • 1:02

    Step four, add 1 to the hours variable.

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    There are many different ways to do this, but

  • 1:08

    I'm going to use the shortcut that just adds 1.

  • 1:12

    $hours++.

  • 1:14

    Step five, subtract 0.5 from the productivity variable.

  • 1:20

    Again, there are multiple ways to do this.

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    I've chosen to use $productivity -= .5.

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    This takes the original productivity value and subtracts 0.5.

  • 1:33

    Step 6, create a third variable, named secondTotal, and

  • 1:38

    set it equal to the new value of multiplying hours by productivity.

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    This should look just like we did in step three.

  • 1:47

    Finally, for step seven, replace the comments to add firstTotal, and

  • 1:52

    secondTotal to the following output.

  • 1:55

    We need to echo and then the variable name, closing each line with a semicolon.

  • 2:03

    Let's run our solution.

  • 2:07

    View > Show Console.

  • 2:09

    php index.php.

  • 2:13

    If your solution was different than mine, that's great.

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    Seldom is there only one solution.

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    If you see something interesting in my code,

  • 2:23

    you should try to implement it in your own program.

  • 2:26

    Keep practicing, so you can master these new skills.

  • 2:29

    Until next time, happy coding.

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