PDO_MYSQL_ATTR_READ_DEFAULT_FILE 660 ext/pdo_mysql/mysql_driver.c default_file = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_READ_DEFAULT_FILE, NULL TSRMLS_CC); PDO_MYSQL_ATTR_READ_DEFAULT_FILE 109 ext/pdo_mysql/pdo_mysql.c REGISTER_PDO_CLASS_CONST_LONG("MYSQL_ATTR_READ_DEFAULT_FILE", (long)PDO_MYSQL_ATTR_READ_DEFAULT_FILE);