How can the validation of HTML code in email content impact the display and functionality of tables and links in PHP-generated emails?

Validation of HTML code in email content is crucial for ensuring proper display and functionality of tables and links in PHP-generated emails. Invalid HTML code can cause rendering issues, broken links, and overall poor user experience. To address this, it is important to use a reliable HTML validator tool to check and correct any errors in the HTML code before sending the email.

// Example PHP code snippet for validating HTML code in email content

$html_content = "<html><body><table><tr><td>Table Content</td></tr></table><a href='https://example.com'>Link</a></body></html>";

// Validate HTML content
$dom = new DOMDocument();
$dom->loadHTML($html_content);

// Use the validated HTML content in the email generation process
// For example, sending an email with PHP's mail function
mail('recipient@example.com', 'Subject', $dom->saveHTML());