add test for ob_gzhandler

ext/zlib/tests/ob_gzhandler_legacy_002.phpt

@@ -0,0 +1,24 @@
+--TEST--
+ob_gzhandler legacy
+--SKIPIF--
+<?php
+if (!extension_loaded("zlib")) die("skip need ext/zlib");
+if (false === stristr(PHP_SAPI, "cgi")) die("skip need sapi/cgi");
+?>
+--INI--
+zlib.output_compression=0
+--ENV--
+HTTP_ACCEPT_ENCODING=
+--POST--
+dummy=42
+--FILE--
+<?php
+if (false !== ob_gzhandler("", PHP_OUTPUT_HANDLER_START)) {
+	ini_set("zlib.output_compression", 0);
+	ob_start("ob_gzhandler");
+}
+echo "hi\n";
+?>
+--EXPECTF--
+hi
+--EXPECTHEADERS--