diff --git a/tests/lang/bug22690.phpt b/tests/lang/bug22690.phpt
new file mode 100644
index 00000000000..6aed5be6e91
--- /dev/null
+++ b/tests/lang/bug22690.phpt
@@ -0,0 +1,12 @@
+--TEST--
+Bug #22690 (ob_start() is broken with create_function() callbacks)
+--FILE--
+<?php
+	$foo = create_function('$s', 'return strtoupper($s);');
+	ob_start($foo);
+	echo $foo("bar\n");
+?>
+bar
+--EXPECT--
+BAR
+BAR