Added a test for function overloading behaviour

diff --git a/ext/mbstring/tests/overload.phpt b/ext/mbstring/tests/overload.phpt
new file mode 100644 (file)
index 0000000..3e1fc44
--- /dev/null
+++ b/ext/mbstring/tests/overload.phpt
@@ -0,0 +1,33 @@
+--TEST--
+Function overloading test (said to be harmful)
+--SKIPIF--
+<?php extension_loaded('mbstring') or die('skip mbstring not available'); ?>
+--INI--
+output_handler=
+mbstring.func_overload=7
+mbstring.internal_encoding=EUC-JP
+--FILE--
+<?php
+echo mb_internal_encoding()."\n";
+
+$ngchars = array('ǽ','ɽ','»½','¥½');
+$str = '¸µÏ½ÍÜ»½Ðò¼Òº¾µ½É½¸½Ç½ÎÏɽ¼¨±½ÌÈÄä˽ÎÏŽÉÕ¹½Ê¸·½»ÒͽÃÎñ½Æ¬¥½¥Õ¥¡¡¼';
+var_dump(strlen($str));
+var_dump(mb_strlen($str));
+
+$converted_str = mb_convert_encoding($str, 'Shift_JIS');
+mb_regex_encoding('Shift_JIS');
+foreach($ngchars as $c) {
+       $c = mb_convert_encoding($c, 'Shift_JIS');
+       $replaced = mb_convert_encoding(ereg_replace($c, '!!', $converted_str), mb_internal_encoding(), 'Shift_JIS');
+       var_dump(strpos($replaced, '!!'));
+}
+?>
+--EXPECT--
+EUC-JP
+int(33)
+int(33)
+int(10)
+int(8)
+int(3)
+int(29)