How can PHP developers ensure readability and efficiency when comparing multiple variables in a script?

To ensure readability and efficiency when comparing multiple variables in a script, PHP developers can use the switch statement instead of multiple if-else statements. This helps in organizing the code and making it more readable. Additionally, using a switch statement can be more efficient as it allows for direct comparison of a single expression against multiple possible values.

$variable = "value";

switch ($variable) {
    case "value1":
        // do something
        break;
    case "value2":
        // do something else
        break;
    default:
        // handle default case
        break;
}