--- /dev/null
+--TEST--
+Bug #14529 basename() workaround
+--SKIPIF--
+--FILE--
+<?php
+include "Mail/mime.php";
+
+$Mime = new Mail_mime();
+// some text with polish Unicode letter at the beginning
+$filename = base64_decode("xZtjaWVtYQ==");
+$Mime->addAttachment('testfile', "text/plain", $filename, FALSE, 'base64', 'attachment', 'ISO-8859-1');
+
+$content = $Mime->get();
+$content = str_replace("\n", '', $content);
+
+if (preg_match('/filename([^\s]+)/i', $content, $matches)) {
+ echo $matches[1];
+}
+?>
+--EXPECT--
+*=ISO-8859-1''%C5%9Bciema;