How can the usage of if and elseif statements be optimized in PHP code to avoid logical errors?

To optimize the usage of if and elseif statements in PHP code and avoid logical errors, it is important to carefully structure the conditions to ensure they are mutually exclusive. This means that each condition should be distinct and not overlap with others. Additionally, using switch statements instead of long chains of if and elseif can improve readability and maintainability of the code.

// Example of optimized if and elseif statements using switch

$number = 5;

switch ($number) {
    case 1:
        echo "Number is 1";
        break;
    case 2:
        echo "Number is 2";
        break;
    case 3:
        echo "Number is 3";
        break;
    default:
        echo "Number is not 1, 2, or 3";
}