What are common issues with returning HTML tags in response to Ajax requests in PHP?

One common issue with returning HTML tags in response to Ajax requests in PHP is that the HTML may not be properly formatted or escaped, leading to potential security vulnerabilities like cross-site scripting (XSS). To solve this issue, you should always properly escape any user-generated content before embedding it in HTML tags. 

// Example code snippet to properly escape HTML content before returning it in response to an Ajax request
$htmlContent = "<p>This is some user-generated content</p>";
$escapedHtmlContent = htmlspecialchars($htmlContent, ENT_QUOTES, 'UTF-8');

echo $escapedHtmlContent;

Keywords

Ajax PHP HTML tags response issues

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