Creating Variables

Building Variables

Variables are an essential part of any project. They hold data that can be modified or used later in a program.

We define variables in PHP with a $ sign and then we need to decide what the datatype for the variable will be. For a string of text make sure to put the text in quotes. If the value is a decimal or integer, no quotes are needed.

For Example, let's add these after the <?php in our code:

$name = "PHP Store";
$credit = 1000;

Combining text and Variables

Using a period (.), we can concatenate text and variables. Replace the echo line with the following:

echo "<h1>Welcome to ".$name."!</h1>";
echo "<h2>You have $".$credit." in your wallet.</h2>";";

Your code should look like this now:

<!DOCTYPE html>
<html>
  <head>
    <title>PHP Store</title>
  </head>
  <body>
    <?php
      $name = "PHP Store";
      $credit = 1000; 

      echo "<h1>Welcome to ".$name."!</h1>";
      echo "<h2>You have $".$credit." in your wallet.</h2>";
    ?>
  </body>
</html>

Refresh your browser and you should these sentences: Welcome to PHP Store! You have $1000 in your wallet.

If that worked, push your file to GitHub for the next step:

git add index.php
git commit -m"add variables"
git push origin master

learner-stack / php-course

Creating PHP Variables #3

Creating Variables

Building Variables

Combining text and Variables