use InvalidArgumentException;
+use function get_class;
+use function gettype;
+use function in_array;
+use function is_numeric;
+use function is_object;
+use function is_string;
+use function ord;
+use function preg_match;
+use function sprintf;
+use function strlen;
+
/**
* Provide security tools around HTTP headers to prevent common injection vectors.
*