I am trying to display data in a table as the code below shows. I’m trying to get data for these 3 columns in Requisitions table(view) from a database table called users:
- Requisitioned By
- Approved By and
- Disbursed By
Tables in the db are as follows. I am going to omit columns that seem to be working correctly.
fin_requisitions
| req_id | req_by | approved_by | disbursed_by | | ------ | ------ | ----------- | ------------ | | 1 | 1 | 2 | 3 | | 2 | 1 | 2 | 3 |
users table
| id | username | | ------ | ------ | | 1 | Lisa | | 2 | Anne | | 3 | John |
The output is always Lisa even when it should be a different username. I’m a noob but from what I’ve learnt so far the problem can be easily solved by using SQL ALIAS correctly but I have no idea how so I ask, how do I fix this gurus?
<table class="table table-striped">
<thead>
<tr>
<td>ID</td>
<td>File</td>
<td>Expense Category</td>
<td>Amount Requisitioned</td>
<td>Details</td>
<td>Requisitioned By</td>
<td>Requisition Date</td>
<td>Approval Status</td>
<td>Amount Approved</td>
<td>Approved By</td>
<td>Date Approved</td>
<td>Disbursement Status</td>
<td>Amount Disbursed</td>
<td>Disbursed By</td>
<td>Date Disbursed</td>
<td>Note</td>
<td colspan=2>Actions</td>
</tr>
</thead>
<tbody>
<hr>
<?php
$sql = "
SELECT fin_requisition.req_id
, ops_files.file_name
, fin_expense_cats.expense_cat
, fin_requisition.amount
, fin_requisition.details
, users.username
, fin_requisition.req_date
, fin_approval_status.status
, fin_requisition.amt_approved
, users2.username
, fin_requisition.approval_date
, fin_disb_status.status
, fin_requisition.amt_disbursed
, users3.username
, fin_requisition.date_disbursed
, fin_requisition.notes FROM fin_requisition
JOIN ops_files
ON fin_requisition.file = ops_files.file_id
JOIN fin_expense_cats
ON fin_requisition.expense_cat = fin_expense_cats.cat_id
JOIN users
ON fin_requisition.req_by = users.id
JOIN fin_approval_status
ON fin_requisition.approval_status = fin_approval_status.status_id
JOIN users users2
ON fin_requisition.approved_by = users2.id
JOIN fin_disb_status
ON fin_requisition.disb_status = fin_disb_status.status_id
JOIN users users3
ON fin_requisition.disbursed_by = users3.id
ORDER
BY req_id ASC
";
$result = $mysqli->query($sql);
?>
<?php foreach ($result as $row) : ?>
<tr>
<td><?php echo $row["req_id"]; ?></td>
<td><?php echo $row["file_name"]; ?></td>
<td><?php echo $row["expense_cat"]; ?></td>
<td><?php echo $row["amount"]; ?></td>
<td><?php echo $row["details"]; ?></td>
<td><?php echo $row["username"]; ?></td>
<td><?php echo $row["req_date"]; ?></td>
<td><?php echo $row["status"]; ?></td>
<td><?php echo $row["amt_approved"]; ?></td>
<td><?php echo $row["username2"]; ?></td>
<td><?php echo $row["approval_date"]; ?></td>
<td><?php echo $row["status"]; ?></td>
<td><?php echo $row["amt_disbursed"]; ?></td>
<td><?php echo $row["username3"]; ?></td>
<td><?php echo $row["date_disbursed"]; ?></td>
<td><?php echo $row["notes"]; ?></td>
<td>
<a href="edit_requisition.php?req_id=<?php echo ($row["req_id"]); ?>" class="btn btn-primary">Edit</a>
</td>
<td>
<a href="delete_requisition.php?req_id=<?php echo ($row["req_id"]); ?>" method="post">
<button class="btn btn-danger" type="submit" onclick="return confirm('Are you sure you want to delete this record?')">Delete</button>
</a>
</td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
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Answer
In sql you should use prpoer alias name for the diffent username eg: username usename2 , username3
SELECT fin_requisition.req_id
, ops_files.file_name
, fin_expense_cats.expense_cat
, fin_requisition.amount
, fin_requisition.details
, users.username
, fin_requisition.req_date
, fin_approval_status.status
, fin_requisition.amt_approved
, users2.username username2
, fin_requisition.approval_date
, fin_disb_status.status
, fin_requisition.amt_disbursed
, users3.username username3
, fin_requisition.date_disbursed
, fin_requisition.notes FROM fin_requisition
JOIN ops_files
ON fin_requisition.file = ops_files.file_id
JOIN fin_expense_cats
ON fin_requisition.expense_cat = fin_expense_cats.cat_id
JOIN users
ON fin_requisition.req_by = users.id
JOIN fin_approval_status
ON fin_requisition.approval_status = fin_approval_status.status_id
JOIN users users2
ON fin_requisition.approved_by = users2.id
JOIN fin_disb_status
ON fin_requisition.disb_status = fin_disb_status.status_id
JOIN users users3
ON fin_requisition.disbursed_by = users3.id
ORDER
BY req_id ASC
then refer to these column alias in php code
<td><?php echo $row["req_id"]; ?></td> <td><?php echo $row["file_name"]; ?></td> <td><?php echo $row["expense_cat"]; ?></td> <td><?php echo $row["amount"]; ?></td> <td><?php echo $row["details"]; ?></td> <td><?php echo $row["username"]; ?></td> <td><?php echo $row["req_date"]; ?></td> <td><?php echo $row["status"]; ?></td> <td><?php echo $row["amt_approved"]; ?></td> <td><?php echo $row["username2"]; ?></td> <td><?php echo $row["approval_date"]; ?></td> <td><?php echo $row["status"]; ?></td> <td><?php echo $row["amt_disbursed"]; ?></td> <td><?php echo $row["username3"]; ?></td> <td><?php echo $row["date_disbursed"]; ?></td> <td><?php echo $row["notes"]; ?></td>