How can variables be properly incorporated into echo statements in PHP?

To properly incorporate variables into echo statements in PHP, you can use concatenation or interpolation. Concatenation involves using the dot (.) operator to combine strings and variables, while interpolation allows you to embed variables directly within double quotes. This ensures that the variable's value is displayed correctly within the echo statement.

$name = "John";
echo "Hello, " . $name . "!"; // Using concatenation
// Output: Hello, John!

$name = "Jane";
echo "Hello, $name!"; // Using interpolation
// Output: Hello, Jane!