一个更好的strip_tags替代方案？ [关闭]

I have a website with CKEditor, To prevent XSS attacks I used strip_tags but the problem is that it also breaks the WYISWYG editor (CKEditor).

Like, stackoverflow is secure to XSS attacks BUT it does not block any tags.

How can I acomplish the same effect?

I want users to be able to share code

php's strip_tags supports allowed tags example direct from php docs site:

$text = '<p>Test paragraph.</p><!-- Comment --> <a href="#fragment">Other text</a>';
echo strip_tags($text);
echo "
";

// Allow <p> and <a>
echo strip_tags($text, '<p><a>');


//output :
//Test paragraph. Other text
//<p>Test paragraph.</p> <a href="#fragment">Other text</a>

maybe this can help