php中mysql_affected_rows()更新记录返回0_echo mysql_affected_rows()返回值总是0?
$sql_update="updatecustomersetNAME_TITLE='$NAME_TITLE',NAME_ENG='$NAME_ENG',NAME_SEC='$NAME_SEC',EMAIL='$EMAIL',ADDRESS1='$ADDRESS1',ADDRESS2='$ADDRESS2',CITY='$CITY',COU...$sql_update="updatecustomer