--TEST-- MySQL PDO->prepare(),native PS, anonymous placeholder --EXTENSIONS-- pdo_mysql --SKIPIF-- --FILE-- setAttribute(PDO::ATTR_STRINGIFY_FETCHES, true); try { $db->setAttribute(PDO::MYSQL_ATTR_DIRECT_QUERY, 1); if (1 != $db->getAttribute(PDO::MYSQL_ATTR_DIRECT_QUERY)) printf("[002] Unable to switch on emulated prepared statements, test will fail\n"); $db->exec('DROP TABLE IF EXISTS test'); $db->exec(sprintf('CREATE TABLE test(id INT, label CHAR(255)) ENGINE=%s', PDO_MYSQL_TEST_ENGINE)); $db->exec("INSERT INTO test(id, label) VALUES (1, 'row1')"); $stmt = $db->prepare('SELECT ?, id, label FROM test WHERE ? = ? ORDER BY id ASC'); $stmt->execute(array('id', 'label', 'label')); if ('00000' !== $stmt->errorCode()) printf("[003] Execute has failed, %s %s\n", var_export($stmt->errorCode(), true), var_export($stmt->errorInfo(), true)); var_dump($stmt->fetchAll(PDO::FETCH_ASSOC)); // now the same with native PS printf("now the same with native PS\n"); $db->setAttribute(PDO::MYSQL_ATTR_DIRECT_QUERY, 0); if (0 != $db->getAttribute(PDO::MYSQL_ATTR_DIRECT_QUERY)) printf("[004] Unable to switch off emulated prepared statements, test will fail\n"); $stmt = $db->prepare('SELECT ?, id, label FROM test WHERE ? = ? ORDER BY id ASC'); $stmt->execute(array('id', 'label', 'label')); if ('00000' !== $stmt->errorCode()) printf("[005] Execute has failed, %s %s\n", var_export($stmt->errorCode(), true), var_export($stmt->errorInfo(), true)); var_dump($stmt->fetchAll(PDO::FETCH_ASSOC)); } 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'); ?> --EXPECT-- array(1) { [0]=> array(2) { ["id"]=> string(1) "1" ["label"]=> string(4) "row1" } } now the same with native PS array(1) { [0]=> array(3) { ["?"]=> string(2) "id" ["id"]=> string(1) "1" ["label"]=> string(4) "row1" } } done!