How can the logic and structure of the if-else statements be optimized to ensure proper execution and error handling in the PHP script for user authentication and file uploading functionalities?

To optimize the logic and structure of if-else statements for user authentication and file uploading in PHP, it is essential to handle errors effectively and ensure proper execution flow. One way to achieve this is by using try-catch blocks for error handling and using conditional statements to check for specific conditions before executing code blocks. This approach helps in improving the readability, maintainability, and robustness of the script. 

try {
    // User authentication logic
    if($authenticated) {
        // File uploading logic
        if($fileUploaded) {
            echo "File uploaded successfully!";
        } else {
            throw new Exception("Error uploading file.");
        }
    } else {
        throw new Exception("User authentication failed.");
    }
} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
}

Keywords

if-else statements optimization error handling user authentication file uploading

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