What resources or documentation should be consulted when encountering errors during the installation of PHP scripts like AgileBill?

When encountering errors during the installation of PHP scripts like AgileBill, it is recommended to consult the official documentation of AgileBill for specific troubleshooting steps. Additionally, checking the PHP error logs for more detailed error messages can help pinpoint the issue. Online forums and communities dedicated to PHP development can also provide valuable insights and solutions to common installation problems.

// Example PHP code snippet to check PHP error logs for more detailed error messages
error_log("Error message: " . $error_message);