What are some recommended approaches for debugging PHP code that involves writing data to a text file?

When debugging PHP code that involves writing data to a text file, it's important to check for any errors in the file writing process. One approach is to use error handling functions like `file_put_contents()` which returns false if the file write fails. Additionally, you can use `error_log()` to log any errors to a separate file for easier debugging.

$data = "Hello, World!";
$file = "output.txt";

if(file_put_contents($file, $data) === false){
    error_log("Error writing to file: " . $file);
} else {
    echo "Data written to file successfully!";
}