How can PHP errors be effectively debugged when a script breaks on a specific host?

When a PHP script breaks on a specific host, it can be debugged effectively by enabling error reporting, checking for syntax errors, reviewing server logs, and testing the script on a different host to isolate the issue.

// Enable error reporting
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Check for syntax errors
ini_set('display_startup_errors', 1);
ini_set('display_errors', 1);

// Review server logs for detailed error messages
// For example, check the Apache error log

// Test the script on a different host to isolate the issue