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One Solution

2:12 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, were you able to complete the challenge?

  • 0:03

    If no, no worries you can watch my solution compared to what you wrote and

  • 0:08

    then try the challenge again.

  • 0:11

    In step one we were asked to create a variable named programmer and

  • 0:15

    set it's value equal to Ada Lovelace, we start with the dollar sign.

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    Programmer equals and then within quotes, Ada Lovelace.

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    Step two we were to create another variable named year, and

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    set its value equal to 1843.

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    Dollar sign year equals 1843.

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    Because this is an integer and we're going to use it as a string.

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    It doesn't really matter if we use quotes or not quotes.

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    Either one would work.

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    PHP will change your variables to best match the situation.

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    Step 3, replace programmer in the message string with the variable programmer.

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    And replace year in the message string with the variable year.

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    Because our message string was within single quotes,

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    if we added the programmer variable, directly within the string,

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    it would just give us $programmer.

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    Instead, before programmer, I close the string, and

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    use the string concatenation character, period.

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    I then put programmer, followed again by another period.

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    And this time, I changed the last part of our message to double quotes.

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    When a variable is used within a string that has double quotes,

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    the value of that variable is used.

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    Step four is to display the message string to the screen.

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    In this case, we used echo message.

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    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,

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    you should try implementing it in your own program.

  • 2:06

    Keep practicing so you can master these new skills.

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    Until next time, happy coding.

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