How can PHP developers troubleshoot and resolve errors related to virtual directories and script execution on IIS?

To troubleshoot and resolve errors related to virtual directories and script execution on IIS, PHP developers can start by checking the IIS configuration to ensure that the virtual directory is properly set up to execute PHP scripts. They can also verify that the PHP handler mappings are correctly configured in IIS. Additionally, checking the PHP configuration settings such as the `cgi.force_redirect` and `cgi.fix_pathinfo` directives can help resolve any issues related to script execution.

// Example PHP code snippet to set up virtual directories and script execution on IIS

// Ensure that the virtual directory is properly set up in the IIS configuration
// Verify that the PHP handler mappings are correctly configured in IIS
// Check the PHP configuration settings such as cgi.force_redirect and cgi.fix_pathinfo

// Sample code to test PHP script execution
echo "Hello, World!";