1 files changed, 20 insertions, 0 deletions
diff --git a/ext/mbstring/tests/bug78609.phpt b/ext/mbstring/tests/bug78609.phpt
new file mode 100644
index 0000000000..11f9b06f13
--- /dev/null
+++ b/ext/mbstring/tests/bug78609.phpt
@@ -0,0 +1,20 @@
+--TEST--
+Bug #78609 (mb_check_encoding() no longer supports stringable objects)
+--SKIPIF--
+<?php
+if (!extension_loaded('mbstring')) die('skip mbstring extension not available');
+?>
+--FILE--
+<?php
+class Foo
+{
+    public function __toString()
+    {
+        return 'string_representation';
+    }
+}
+
+var_dump(mb_check_encoding(new Foo, 'UTF-8'));
+?>
+--EXPECT--
+bool(true)