When to wrap curly braces around a variable

Question

I don\'t know how to explain this but in simple terms I have seen people using {$variable} when outputting values. I have noticed that {$variable}

Answer 1

As far as I know, you can use for variable $x

echo "this is my variable value : $x dollars";

… but if you don't have any spaces between the variable and the text around it, you should use {}. For example:

echo "this is my variable:{$x}dollars";

because if you wrote it $xdollars it will interpret it as another variable.