How can developers ensure that their switch statements in PHP are structured correctly and function as intended?

To ensure that switch statements in PHP are structured correctly and function as intended, developers should make sure that each case statement is properly terminated with a break statement to prevent fall-through behavior. Additionally, default cases should be included to handle unexpected values. It's also a good practice to use strict comparison (===) to compare values in the switch statement.

$color = "red";

switch ($color) {
    case "red":
        echo "The color is red";
        break;
    case "blue":
        echo "The color is blue";
        break;
    default:
        echo "Unknown color";
}