What are best practices for handling file creation and manipulation in PHP to ensure proper error handling and debugging capabilities?

When handling file creation and manipulation in PHP, it is important to ensure proper error handling and debugging capabilities to catch and address any issues that may arise during the process. This can be achieved by using functions like `file_exists()` and `is_writable()` to check if the file exists and is writable before attempting any operations on it. Additionally, using try-catch blocks and error logging can help in capturing and handling any exceptions that occur during file operations.

// Check if the file exists and is writable before proceeding
$filename = 'example.txt';

if (file_exists($filename) && is_writable($filename)) {
    // Perform file manipulation operations here
    try {
        // Code for file creation/manipulation
    } catch (Exception $e) {
        // Handle any exceptions that occur during file operations
        echo 'Error: ' . $e->getMessage();
        // Log the error for debugging purposes
        error_log('Error: ' . $e->getMessage(), 0);
    }
} else {
    echo 'File does not exist or is not writable';
}