--TEST-- MySQL PDO->exec(), SELECT --SKIPIF-- --FILE-- exec($sql); if ($ret !== $exp) { printf("[%03d] Expecting '%s'/%s got '%s'/%s when running '%s', [%s] %s\n", $offset, $exp, gettype($exp), $ret, gettype($ret), $sql, $db->errorCode(), implode(' ', $db->errorInfo())); return false; } } catch (PDOException $e) { printf("[%03d] '%s' has failed, [%s] %s\n", $offset, $sql, $db->errorCode(), implode(' ', $db->errorInfo())); return false; } return true; } require_once(__DIR__ . DIRECTORY_SEPARATOR . 'mysql_pdo_test.inc'); $db = MySQLPDOTest::factory(); MySQLPDOTest::createTestTable($db, MySQLPDOTest::detect_transactional_mysql_engine($db)); /* affected rows related */ try { exec_and_count(2, $db, 'DROP TABLE IF EXISTS test', 0); exec_and_count(3, $db, sprintf('CREATE TABLE test(id INT NOT NULL PRIMARY KEY, col1 CHAR(10)) ENGINE=%s', PDO_MYSQL_TEST_ENGINE), 0); exec_and_count(4, $db, "INSERT INTO test(id, col1) VALUES (1, 'a')", 1); // question is: will the result set be cleaned up, will it be possible to run more queries on the line? // buffered or unbuffered does not matter! $db->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, true); exec_and_count(5, $db, 'SELECT id FROM test', 0); exec_and_count(6, $db, "INSERT INTO test(id, col1) VALUES (2, 'b')", 1); } catch (PDOException $e) { printf("[001] %s, [%s] %s\n", $e->getMessage(), $db->errorCode(), implode(' ', $db->errorInfo())); } print "done!"; ?> --CLEAN-- exec('DROP TABLE IF EXISTS test'); ?> --EXPECTF-- Warning: PDO::exec(): SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. in %s on line %d [006] Expecting '1'/integer got ''/boolean when running 'INSERT INTO test(id, col1) VALUES (2, 'b')', [HY000] HY000 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. done!