Prevent Duplicate Name or Re-entry of Name on showing - php

Question

EDIT: Is it possible to query this? I have 2 table.
tithing table
tithings.MarrID = FK to Marriage table
tithings.Tithing_ID PK
tithingspayment table
tithingspayment.TP_ID = PK
tithingspayment.Tithing_ID = FK to tithings table "Tithing_ID"
Paid_Amount
Paid_Month_Year = Date
Marr_ID | Tithing_ID | TP_ID | Tithing_ID | Paid_Amount | Paid_Month_Year | TP_ID | Tithing_ID | Paid_Amount | Paid_Month_Year |
1 | 2 | 5 | 2 | 10.00 | Jan-2014 | 3 | 2 | 10.00 | Feb-2014 |
Sorry for the long codes; what I'm trying to ask is that I wanted not to show same name in my table:
<?php
$con=mysqli_connect("localhost","root","","RMS");
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
if (isset($_GET["page"])) { $page = $_GET["page"]; } else { $page=1; };
$start_from = ($page-1) * 30;
$sql = "SELECT *
FROM tithings
INNER JOIN marriage ON tithings.Marr_ID = marriage.MarrID
INNER JOIN tithings_payment ON tithings_payment.Tithing_ID = tithings.Tithing_ID WHERE YEAR( STR_TO_DATE( Dateregistered, '%Y' ) ) <= $year LIMIT $start_from, 30";
$result = mysqli_query($con,$sql);
echo "<div class='datagrid'><table>
<thead><tr>
<th>Family Name</th>
<th>Jan</th>
<th>Feb</th>
<th>Mar</th>
<th>Apr</th>
<th>May</th>
<th>June</th>
<th>July</th>
<th>Aug</th>
<th>Sep</th>
<th>Oct</th>
<th>Nov</th>
<th>Dec</th>
<th>Operations</th>
</tr></thead>";
while($row = mysqli_fetch_array($result))
{
$id = $row['Tithing_ID'];
echo "<tbody><tr>";
$MonthRegistered = date("F", strtotime($row['Dateregistered']));
$YearRegistered = date("Y", strtotime($row['Dateregistered']));
$PaidMonthYear = $row['Paid_Month_Year'];
$PaidAmount = $row['Paid_Amount'];
$January = date("Y-m", strtotime($row['Paid_Month_Year']));
if($January == "$year-01")
{$January = $row['Paid_Amount'];}
else{$January = 0;}
$February = date("Y-m", strtotime($row['Paid_Month_Year']));
if($February == "$year-02")
{$February = $row['Paid_Amount'];}
else{$February = 0;}
$March = date("Y-m", strtotime($row['Paid_Month_Year']));
if($March == "$year-03")
{$March = $row['Paid_Amount'];}
else{$March = 0;}
$April = date("Y-m", strtotime($row['Paid_Month_Year']));
if($April == "$year-04")
{$April = $row['Paid_Amount'];}
else{$April = 0;}
$May = date("Y-m", strtotime($row['Paid_Month_Year']));
if($May == "$year-05")
{$May = $row['Paid_Amount'];}
else{$May = 0;}
$June = date("Y-m", strtotime($row['Paid_Month_Year']));
if($June == "$year-06")
{$June = $row['Paid_Amount'];}
else{$June = 0;}
$July = date("Y-m", strtotime($row['Paid_Month_Year']));
if($July == "$year-07")
{$July = $row['Paid_Amount'];}
else{$July = 0;}
$August = date("Y-m", strtotime($row['Paid_Month_Year']));
if($August == "$year-08")
{$August = $row['Paid_Amount'];}
else{$August = 0;}
$September = date("Y-m", strtotime($row['Paid_Month_Year']));
if($September == "$year-09")
{$September = $row['Paid_Amount'];}
else{$September = 0;}
$October = date("Y-m", strtotime($row['Paid_Month_Year']));
if($October == "$year-10")
{$October = $row['Paid_Amount'];}
else{$October = 0;}
$November = date("Y-m", strtotime($row['Paid_Month_Year']));
if($November == "$year-11")
{$November = $row['Paid_Amount'];}
else{$November = 0;}
$December = date("Y-m", strtotime($row['Paid_Month_Year']));
if($December == "$year-12")
{$December = $row['Paid_Amount'];}
else{$December = 0;}
if ($YearRegistered <= $year)
{$FamilyHead = $row['FName_Groom']. ", " . $row['LName_Groom'];
$operation = "<td class=operations>" . "<a class='detail' href='../record_detail.php?id=$id'>Details</a> | &nbsp<a class='pay' href='payment.php?id=$id'>Pay</a> | &nbsp<a class='edit' href='../record_edit.php?id=$id'>Edit</a></td>";
}else{
$FamilyHead = "<style>
tbody{
display:none;
}
</style>";
$operation = "";
}
echo "<td>" . $FamilyHead ."</td>";
echo "<td>" . $January . "</td>";
echo "<td>" . $February . "</td>";
echo "<td>" . $March ."</td>";
echo "<td>" . $April . "</td>";
echo "<td>" . $May . "</td>";
echo "<td>" . $June . "</td>";
echo "<td>" . $July ."</td>";
echo "<td>" . $August . "</td>";
echo "<td>" . $September . "</td>";
echo "<td>" . $October ."</td>";
echo "<td>" . $November . "</td>";
echo "<td>" . $December . "</td>";
echo $operation;
}
Tithing(Table)
Marr_ID(FK) | Tithing_ID (PK) | Dateregistered | Pledge | Barangay | Address |
5 | 1 | Sept, 13 2014 | 15.00 | Barangay1 | Address |
6 | 2 | Jan, 13 2014 | 15.00 | Barangay1 | Address |
Marriage (Table)
MarrID (PK) | FName_Groom | LName_Groom | MName_Groom |
5 | Name(5) | LName(5) | MName(5) |
6 | Name(6) | LName(6) | MName(6) |
Tithing_payment(Table)
Tithing_P_ID(PK) | Tithing_ID(FK) | Payment_Date_Received | Paid_Amount | Paid_Month_Year |
1 | 1 | Sept, 13 2014 | 15.00 | Sept,01 2014 |
2 | 1 | Sept, 13 2014 | 15.00 | Oct,01 2014 |
3 | 2 | Sept, 13 2014 | 15.00 | Jan,01 2014 |
4 | 2 | Sept, 13 2014 | 15.00 | Feb,01 2014 |
My Query Statement is
$sql = "SELECT *
FROM tithings
INNER JOIN marriage ON tithings.Marr_ID = marriage.MarrID
INNER JOIN tithings_payment ON tithings_payment.Tithing_ID = tithings.Tithing_ID WHERE YEAR( STR_TO_DATE( Dateregistered, '%Y' ) ) <= $year LIMIT $start_from, 30";
The Paid_Month_Year = Month(Jan-Dec) I used PHP if else statement
And the result is this.
Family Name | Jan | Feb | Mar | Apr | May | June | July | Aug | Sep | Oct | Nov | Dec |
Name(5) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15.00 | 0 | 0 | 0 |
Name(5) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15.00 | 0 | 0 |
Name(6) | 15.00 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Name(6) | 0 | 15.00 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Note: I tried Distinct In query didn't work.
What I wanted my output to look like is this;
Family Name | Jan | Feb | Mar | Apr | May | June | July | Aug | Sep | Oct | Nov | Dec |
Name(5) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15.00 | 15.00 | 0 | 0 |
Name(6) | 15.00 | 15.00 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |

Answer 1

Something like this should work, you have to do something with the columns which you don't use in the group statement. In your case it makes sense to take the SUM, because someone could pay something twice in the same month, and also in another one.
SELECT
Family_Name,
SUM(Jan),
SUM(Feb)
....
SUM(Dec)
FROM
tithings
INNER JOIN marriage ON tithings.Marr_ID = marriage.MarrID
INNER JOIN tithings_payment ON tithings_payment.Tithing_ID = tithings.Tithing_ID
WHER
YEAR( STR_TO_DATE( Dateregistered, '%Y' ) ) <= $year
GROUP BY
Family_Name
LIMIT $start_from, 30