--- /dev/null
+--TEST--
+header params rfc5987
+--SKIPIF--
+<?php
+include "skipif.inc";
+?>
+--FILE--
+<?php
+echo "Test\n";
+$u = urlencode("ü");
+$s = urlencode("ß");
+$t = "p1*=utf-8''s$u$s,p2*=utf-8''hei$s;a1*=utf-8''a$s;a2*=utf-8''e$s;a3=no,p3=not";
+$p = new http\Params($t);
+var_dump($p->params);
+var_dump((string)$p === $t, (string)$p, $t);
+?>
+===DONE===
+--EXPECT--
+Test
+array(3) {
+ ["p1"]=>
+ array(2) {
+ ["*rfc5987*"]=>
+ array(1) {
+ [""]=>
+ string(5) "süß"
+ }
+ ["arguments"]=>
+ array(0) {
+ }
+ }
+ ["p2"]=>
+ array(2) {
+ ["*rfc5987*"]=>
+ array(1) {
+ [""]=>
+ string(5) "heiß"
+ }
+ ["arguments"]=>
+ array(2) {
+ ["*rfc5987*"]=>
+ array(2) {
+ ["a1"]=>
+ array(1) {
+ [""]=>
+ string(3) "aß"
+ }
+ ["a2"]=>
+ array(1) {
+ [""]=>
+ string(3) "eß"
+ }
+ }
+ ["a3"]=>
+ string(2) "no"
+ }
+ }
+ ["p3"]=>
+ array(2) {
+ ["value"]=>
+ string(3) "not"
+ ["arguments"]=>
+ array(0) {
+ }
+ }
+}
+bool(true)
+string(96) "p1*=utf-8''s%C3%BC%C3%9F,p2*=utf-8''hei%C3%9F;a1*=utf-8''a%C3%9F;a2*=utf-8''e%C3%9F;a3=no,p3=not"
+string(96) "p1*=utf-8''s%C3%BC%C3%9F,p2*=utf-8''hei%C3%9F;a1*=utf-8''a%C3%9F;a2*=utf-8''e%C3%9F;a3=no,p3=not"
+===DONE===