$name = "George";

$weight = 85; //kg

$height = 1.9; //m

$male = true;

$colors = ["Red", "Green", "Blue"];
// Instead of storing them in separate variables like this:
$color1 = "Red";
$color2 = "Green";
$color3 = "Blue";

gettype()

echo gettype($my_name); // string