Added skipif

ext/filter/tests/bug39763.phpt

@@ -1,5 +1,7 @@
 --TEST--
 Bug #39763 (filter applies magic_quotes twice in parse_str())
+--SKIPIF--
+<?php if (!extension_loaded("filter")) die("skip"); ?>
 --INI--
 magic_quotes_gpc=1
 filter.default=
@@ -14,4 +16,4 @@ echo $val . "\n";
 --EXPECT--	
 Deprecated: Directive 'magic_quotes_gpc' is deprecated in PHP 5.3 and greater in Unknown on line 0
 \"probably a bug\"
-\"probably a bug\"
+\"probably a bug\"