How can error_reporting be effectively utilized to troubleshoot PHP code issues?

To effectively troubleshoot PHP code issues, error_reporting can be utilized to display errors and warnings that occur during script execution. By setting the error_reporting level to E_ALL, all errors and warnings will be displayed, helping to identify the root cause of the issue. This can be done by adding the following line of code at the beginning of the PHP script:

error_reporting(E_ALL);