Changed return value for PDO::lastInsertId for 8.1+ (#1332)

source/pdo_sqlsrv/pdo_dbh.cpp

@@ -1616,7 +1616,7 @@ zend_string * pdo_sqlsrv_dbh_last_id(_Inout_ pdo_dbh_t *dbh, _In_ const zend_str
         str[0] = '\0';
         return str;
 #else
-        return NULL;
+        return ZSTR_EMPTY_ALLOC();
 #endif
     }
 

test/functional/pdo_sqlsrv/pdo_lastInsertId.phpt

@@ -40,7 +40,7 @@ try {
 
 
 ?>
---EXPECTREGEX--
-string\(3\) "200"
-string\(3\) "102"
-(string\(0\) ""|bool\(false\))
+--EXPECT--
+string(3) "200"
+string(3) "102"
+string(0) ""