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Practice PHP Number Variables

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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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    How did it go? 0:00
    Were you able to complete the challenge? 0:01
    If not, no worries, you can watch my solution compared to what you wrote and 0:04
    then try the challenge again. 0:09
    Let's review. 0:11
    Step one, create a variable named hours and set it to the integer value of 40. 0:12
    Variables start with the $ sign. 0:18
    So $hours = 40. 0:21
    Because this is an integer, we do not need to use quotation marks. 0:25
    Step two, create a variable named productivity and 0:30
    set it to the float value of 10.5. 0:34
    $productivity = 10.5. 0:37
    Again, with number values, we do not need to use quotation marks. 0:41
    Step three, create a third variable named firstTotal and 0:47
    set it equal to the value of multiplying hours by productivity. 0:51
    $firstTotal = $hours * $productivity. 0:56
    Step four, add 1 to the hours variable. 1:02
    There are many different ways to do this, but 1:06
    I'm going to use the shortcut that just adds 1. 1:08
    $hours++. 1:12
    Step five, subtract 0.5 from the productivity variable. 1:14
    Again, there are multiple ways to do this. 1:20
    I've chosen to use $productivity -= .5. 1:22
    This takes the original productivity value and subtracts 0.5. 1:27
    Step 6, create a third variable, named secondTotal, and 1:33
    set it equal to the new value of multiplying hours by productivity. 1:38
    This should look just like we did in step three. 1:43
    Finally, for step seven, replace the comments to add firstTotal, and 1:47
    secondTotal to the following output. 1:52
    We need to echo and then the variable name, closing each line with a semicolon. 1:55
    Let's run our solution. 2:03
    View > Show Console. 2:07
    php index.php. 2:09
    If your solution was different than mine, that's great. 2:13
    Seldom is there only one solution. 2:17
    If you see something interesting in my code, 2:20
    you should try to implement it in your own program. 2:23
    Keep practicing, so you can master these new skills. 2:26
    Until next time, happy coding. 2:29

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