What are the potential pitfalls of not using parentheses in PHP echo statements?

Not using parentheses in PHP echo statements can lead to unexpected behavior or errors, especially when concatenating strings or variables. To avoid any potential pitfalls, it's best practice to always use parentheses when using echo to ensure proper output formatting and to prevent any ambiguity in the code.

// Incorrect usage without parentheses
echo "Hello, " . $name . "!"; // This may lead to unexpected behavior

// Corrected code with parentheses
echo("Hello, " . $name . "!");