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<!DOCTYPE html>
<html>
<body>
<h1>Php Variable Names</h1>
<?php
# php variable names must start with a dollar sign, the 2nd character must be a letter or underscore and the rest must be one or more of the following: letters, underscores, and numbers.
# Variable names are case sensitive
$_name = "Homer";
$gpa = 4.0;
$_book_10 = "For Whom the Bell Tolls";
?>
</body>
</html>
