From 18067c40200a4fa6830174af95b46d8b71ac566d Mon Sep 17 00:00:00 2001
From: Paul Tarjan <ptarjan@fb.com>
Date: Mon, 10 Jun 2013 13:46:17 -0700
Subject: [PATCH] don't call auotloader with blank name

I debated putting in an assert in the autoloader but I'm worried that will break many things. Lets just plug this for now.

Closes #803
---
 hphp/runtime/ext/ext_pdo.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hphp/runtime/ext/ext_pdo.cpp b/hphp/runtime/ext/ext_pdo.cpp
index d16bd5238..d116d0aa5 100644
--- a/hphp/runtime/ext/ext_pdo.cpp
+++ b/hphp/runtime/ext/ext_pdo.cpp
@@ -579,6 +579,9 @@ static Object pdo_stmt_instantiate(sp_PDOConnection dbh, CStrRef clsname,
 
 static void pdo_stmt_construct(sp_PDOStatement stmt, Object object,
                                CStrRef clsname, CVarRef ctor_args) {
+  if (clsname.empty()) {
+    return;
+  }
   Class* cls = Unit::loadClass(clsname.get());
   if (!cls) {
     return;