What are some best practices for handling logic errors in PHP scripts, especially when dealing with page navigation?

When handling logic errors in PHP scripts, especially when dealing with page navigation, it is important to thoroughly test the code and use conditional statements to check for errors before proceeding with navigation. Additionally, implementing error handling mechanisms such as try-catch blocks can help identify and handle any unexpected issues that arise during navigation. 

// Example of handling logic errors in PHP scripts for page navigation

// Check if a page parameter is set and valid
if(isset($_GET['page']) && is_numeric($_GET['page'])) {
    $page = $_GET['page'];
    // Logic for navigating to the specified page
    switch($page) {
        case 1:
            // Code for page 1
            break;
        case 2:
            // Code for page 2
            break;
        default:
            // Handle invalid page number
            echo "Invalid page number";
            break;
    }
} else {
    // Handle missing or invalid page parameter
    echo "Page parameter is missing or invalid";
}

Keywords

error handling debugging try-catch exception handling navigation logic

Related Questions