Select Statement only the first row data was get

[newphpcoder]

Good day!

I have table for the list of range and the equal deduction based on their total earnings.

here is the fields from table sss

Ref_No
From_Range
To_Range
Salary_Credit
Employee-Share

Sample data
Ref_No 1
From_Range 1000
To_Range 2000
Salary Credit 1500
Employee Share 50

Ref_No 2
From_Range 3000
To_Range 4000
Salary Credit 3500
Employee Share 150

And so on..

I have this test code to check if all data was selected for reference in condition to get the employee share based on their totalernings.:

$TotEarn is not already save in the database, it was only display in the webpage.

$TotEarn = round(($Amount + $OTReg_Amt + $SunReg_Amt + $OTSun_Amt + $HolReg_Amt + $HolRegOT_Amt + $HolLeave_Amt + $NP_Amt + $Meal_Amt + $Cola_Amt), 2);

$smarty->assign('TotEarn', $TotEarn);

$sql = "SELECT Ref_No, From_Range, To_Range, Employee_Share FROM $PAYROLL.sss, $ADODB_DB.employment em WHERE em.EMP_ID = '$currentEmpID'";
$rs = $conn2->Execute($sql);

$Ref_No = $rs->fields['Ref_No'];
$From_Range = $rs->fields['From_Range'];
$To_Range = $rs->fields['To_Range'];
$Employee_Share = $rs->fields['Employee_Share'];       


if($Ref_No == 1 AND $Totearn >= $From_Range AND $TotEarn <= $To_Range){
    echo $Employee_Share;
}
elseif($Ref_No == 2 AND $TotEarn >= $From_Range AND $TotEarn <= $To_Range){
    echo $Employee_Share;
}
elseif($Ref_No == 3 AND $TotEarn >= $From_Range AND $TotEarn <= $To_Range){
    echo $Employee_Share;
}
else{
    echo 0;
}  

the result is only one data has the correct output and the rest the output is 0.

How can I get all the data not only the first row in the database, because i need to used it in if, elseif , else condition.

Thank you so much...