tx_rollback      2706 ext/mysqlnd/mysqlnd.c MYSQLND_METHOD(mysqlnd_conn_data, tx_rollback)(MYSQLND_CONN_DATA * conn TSRMLS_DC)
tx_rollback      3097 ext/mysqlnd/mysqlnd.c 	MYSQLND_METHOD(mysqlnd_conn_data, tx_rollback),