How can one troubleshoot errors related to PDF generation and htaccess configurations in PHP?

To troubleshoot errors related to PDF generation in PHP, ensure that the necessary libraries like TCPDF or FPDF are properly installed and included in your code. Check for any syntax errors or incorrect parameters when generating the PDF file. To troubleshoot errors related to htaccess configurations in PHP, make sure that the htaccess file is correctly configured with the appropriate directives for your server environment. Check for any typos or incorrect paths in the htaccess file that may be causing the issue. PHP Code Snippet for Troubleshooting PDF Generation:

require('tcpdf/tcpdf.php');

$pdf = new TCPDF();
$pdf->AddPage();
$pdf->SetFont('Arial', 'B', 16);
$pdf->Cell(40, 10, 'Hello World!');
$pdf->Output('example.pdf', 'D');
```

PHP Code Snippet for Troubleshooting htaccess Configurations:

```php
# Redirect all traffic to index.php
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ index.php [L]