PHP Variable names ARE case-sensitive

Yes, in PHP, variable names are case-sensitive. This means that variables with different capitalization are considered different variables.

For example, the following PHP code declares two different variables because they have different capitalization :

$myVar = "Hello, World!";
$myvar = "Goodbye, World!";​

In this code, `$myVar` and `$myvar` are two different variables, even though they have similar names.

It is important to note that PHP is also a loosely typed language, which means that the data type of a variable is determined automatically based on the value assigned to it.

Therefore, it is possible to assign values of different types to the same variable, and the variable's data type will change accordingly.