How can error reporting be used effectively in PHP to identify issues in the code?

Error reporting in PHP can be used effectively by setting the error_reporting level to E_ALL at the beginning of the script. This will display all errors, warnings, and notices, helping to identify issues in the code. Additionally, using functions like error_log() or trigger_error() can help log errors to a file or display them in the browser for debugging purposes.

error_reporting(E_ALL);
ini_set('display_errors', 1);

// Your PHP code here
// This will display all errors, warnings, and notices to help identify issues in the code