How can error_reporting be used to troubleshoot potential issues with the `rename()` function in PHP?

When troubleshooting potential issues with the `rename()` function in PHP, you can use the `error_reporting` function to display any errors that may occur during the renaming process. By setting the error reporting level to `E_ALL`, you can ensure that all errors, including warnings and notices, are displayed. This can help you identify any issues with file permissions, file paths, or other potential problems that may be causing the `rename()` function to fail.

// Set error reporting level to display all errors
error_reporting(E_ALL);

// Perform the file renaming operation
if(rename("oldfile.txt", "newfile.txt")) {
    echo "File renamed successfully.";
} else {
    echo "Error renaming file.";
}