When should switch statements be preferred over if-elseif-else chains in PHP programming?

Switch statements should be preferred over if-elseif-else chains in PHP programming when dealing with a large number of conditions that involve checking the value of a single variable. Switch statements are more concise and easier to read in such cases, making the code more maintainable. Additionally, switch statements can sometimes be more efficient than if-elseif-else chains as they use jump tables for faster execution.

$day = "Monday";

switch ($day) {
    case "Monday":
        echo "It's Monday!";
        break;
    case "Tuesday":
        echo "It's Tuesday!";
        break;
    case "Wednesday":
        echo "It's Wednesday!";
        break;
    default:
        echo "It's not Monday, Tuesday, or Wednesday.";
}