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Using filter_input_array with FILTER_SANITIZE_FULL_SPECIAL_CHARS for both $_GET and $_POST can provide an additional layer of security by sanitizing input data. However, keep in mind that it may cause unintended behavior if applied indiscriminately to all input. It's generally considered safe, especially when combined with htmlspecialchars, but ensure it doesn't interfere with any specific requirements or data types in your application. Best Regard Danish Hafeez | QA Assistant ICTInnovations