How can PHP variables be properly assigned without enclosing them in quotes?

PHP variables can be properly assigned without enclosing them in quotes by directly assigning the variable name without using quotes. This is because PHP variables do not require quotes when being assigned a value. Using quotes can actually cause issues like treating the variable as a string literal rather than a variable.

$variable = "value"; // Incorrect way with quotes
$variable = value; // Correct way without quotes