What best practices should be followed when handling multiple conditional statements in PHP code to ensure optimal performance and readability?

When handling multiple conditional statements in PHP code, it is important to use switch statements or nested if-else statements instead of multiple if-else statements for better performance and readability. This helps to avoid unnecessary evaluation of conditions and improves code organization. Additionally, using meaningful variable names and comments can enhance code readability.

// Example of using switch statement for handling multiple conditional statements
$day = "Monday";

switch ($day) {
    case "Monday":
        echo "Today is Monday";
        break;
    case "Tuesday":
        echo "Today is Tuesday";
        break;
    default:
        echo "Today is not Monday or Tuesday";
}