How can the use of indentation improve the readability of PHP code, especially in switch statements?

Using indentation in PHP code helps to visually separate different blocks of code, making it easier to read and understand the logic flow. In switch statements, proper indentation can clearly show the different cases and their corresponding code blocks, improving readability and maintainability of the code.

switch ($variable) {
    case 'case1':
        // code block for case1
        break;
    case 'case2':
        // code block for case2
        break;
    default:
        // default code block
}