$date_condition .= ($date_condition ? ' and ' : '') . "
(
(A.cs_inflow_date BETWEEN '".$step_sdate." 00:00:00' AND '".$step_edate." 23:59:59')
OR
(A.cs_join_date BETWEEN '".$step_sdate." 00:00:00' AND '".$step_edate." 23:59:59')
OR
(A.cs_join_deposit_date BETWEEN '".$step_sdate." 00:00:00' AND '".$step_edate." 23:59:59')
)
";
