What are the potential risks of using strip_tags() function on HTML content in PHP?

Using the strip_tags() function on HTML content in PHP can potentially remove important content or break the structure of the HTML. To mitigate this risk, you can use the strip_tags() function with a whitelist of allowed tags and attributes to ensure that only specific tags are removed while preserving the structure of the HTML. 

// Example of using strip_tags() with a whitelist of allowed tags and attributes
$html_content = "<p><strong>Hello</strong> <a href='#'>World</a></p>";
$allowed_tags = '<strong><a>';
$sanitized_content = strip_tags($html_content, $allowed_tags);
echo $sanitized_content;

Keywords

strip_tags HTML content risks security vulnerability XSS

Related Questions