Show Question Excerpts in Question2Answer RSS Feeds

Question2Answer’s RSS feed configuration includes a toggle for “Include full text in feeds” but offers no built-in option to display excerpts instead of full content. If you need excerpt functionality, you’ll need to modify the feed generation code.

This approach works with Question2Answer 1.5.4+. The method involves creating a custom feed handler that truncates content to a specified length.

Creating the excerpt function

First, copy qa-include/qa-feed.php to qa-include/qa-feed-excerpt.php. This becomes your modified feed handler.

In the new qa-feed-excerpt.php file, add this excerpt generation function near the top:

function qa_feed_excerpt($string, $length)
/*
    Return no more than $length characters from $string after converting it to a single line
*/
{
    $string = strtr($string, "\r\n\t", '   ');

    if (qa_strlen($string) > $length) {
        $remaining = $length - 5;

        $words = qa_string_to_words($string, false, true);
        $countwords = count($words);

        $prefix = '';

        for ($addword = 0; $addword < $countwords; $addword++) {
            $word = array_shift($words);

            if (qa_strlen($word) > $remaining)
                break;

            $prefix .= $word;

            $remaining -= qa_strlen($word);
        }

        $string = $prefix . ' ... ';
    }

    return $string;
}

Modifying the description output

In your qa-feed-excerpt.php file, locate the line that generates the <description> element (around line 402-436 depending on version). Replace:

$lines[] = '<description>' . qa_html($htmlcontent) . '</description>';

With:

$lines[] = '<description>' . 
    qa_html(qa_feed_excerpt($htmlcontent, 400)) . 
    '</description>';

Adjust the 400 value to your preferred excerpt length in characters.

Routing feed requests to the custom handler

Edit qa-include/qa-index.php and change the feed routing (around line 161):

if (substr($requestlower, 0, 5) == 'feed/')
    require QA_INCLUDE_DIR . 'qa-feed-excerpt.php';
else
    require QA_INCLUDE_DIR . 'qa-page.php';

Testing your changes

Clear any RSS cache your system may have created, then verify the feed output:

curl http://yoursite.com/feed/ | head -50

Look for <description> tags to confirm they now contain truncated content ending with ... instead of full question/answer text.

Adjusting excerpt length

The excerpt length is controlled by the second parameter to qa_feed_excerpt(). Common settings:

• 200 characters: Minimal preview, good for mobile readers
• 400 characters: Default, shows meaningful context
• 800 characters: Longer excerpts, nearly full content for short posts

Important considerations

This modification creates a non-standard fork of Question2Answer. You’ll need to:

• Reapply this change after any Question2Answer updates
• Test thoroughly in staging before production deployment
• Monitor feed readers to ensure proper RSS parsing

If you need different excerpt lengths for different feed types (questions vs. answers), duplicate the excerpt function with different parameters and apply them selectively in the description generation logic.

For version-specific patch files or automated application, check the Question2Answer community forums or maintain a local patch file that can be applied with git apply or patch command during deployments.

2026 Best Practices and Advanced Techniques

For Show Question Excerpts in Question2Answer RSS Feeds, understanding both the fundamentals and modern practices ensures you can work efficiently and avoid common pitfalls. This guide extends the core article with practical advice for 2026 workflows.

Troubleshooting and Debugging

When issues arise, a systematic approach saves time. Start by checking logs for error messages or warnings. Test individual components in isolation before integrating them. Use verbose modes and debug flags to gather more information when standard output is not enough to diagnose the problem.

Performance Optimization

• Monitor system resources to identify bottlenecks
• Use caching strategies to reduce redundant computation
• Keep software updated for security patches and performance improvements
• Profile code before applying optimizations
• Use connection pooling and keep-alive for network operations

Security Considerations

Security should be built into workflows from the start. Use strong authentication methods, encrypt sensitive data in transit, and follow the principle of least privilege for access controls. Regular security audits and penetration testing help maintain system integrity.

Related Tools and Commands

These complementary tools expand your capabilities:

• Monitoring: top, htop, iotop, vmstat for system resources
• Networking: ping, traceroute, ss, tcpdump for connectivity
• Files: find, locate, fd for searching; rsync for syncing
• Logs: journalctl, dmesg, tail -f for real-time monitoring
• Testing: curl for HTTP requests, nc for ports, openssl for crypto

Integration with Modern Workflows

Consider automation and containerization for consistency across environments. Infrastructure as code tools enable reproducible deployments. CI/CD pipelines automate testing and deployment, reducing human error and speeding up delivery cycles.

Quick Reference

This extended guide covers the topic beyond the original article scope. For specialized needs, refer to official documentation or community resources. Practice in test environments before production deployment.