PHP database delete function only works on first row of database? - php

Question

<p><?php include 'header.php'; ?></p>
<div align="justify">
<td>Name:<input type="text" name="password" ></td> <!-- database -->
<td> Rank:<select>
<!--<option value="volvo">//Database</option>
<option value="saab">Saab</option>
-->
<?php
require ("dbfunction.php");
$con = getDbConnect();
<td> <input type="checkbox" name="vehicle" value="Bike">Group by Rank</td> <!-- database -->
<td> <input type="checkbox" name="vehicle" value="Bike">Include previous service terms</td> <!-- database -->
</div>
<p><table>
<tr>
<th>Name</th>
<th>Rank</th>
<th>Start Date</th>
<th>End Date</th>
<th>Watchkeeping</th>
<th>Active</th>
<th></th>
<th></th>
</tr> <!-- database -->
<tr> <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<?php
if (!mysqli_connect_errno($con)) {
$queryStr = "SELECT * " .
"FROM crewlist";
}
$result = mysqli_query($con, $queryStr);
while ($row = mysqli_fetch_array($result)) {
//echo "<div><a href=http://localhost/poshproject/crewlisting.php?crew_name={$row["crew_id"]}>";
echo "<tr>.<th>" . $row["crew_name"] . "<br></br>" . "</th>";
echo "<th>" . $row["crew_rank"] . "</th>";
echo "<th>" . $row["start_date"] . "</th>";
echo "<th>" . $row["end_date"] . "</th>";
echo "<th>" . $row["watchkeeping"] . "</th>";
echo "<th>" . $row["active"] . "</th>";
echo "<td>Edit";
//echo "<td><center><button type=\"submit\" name=\"Delete\" value="' . $row['crew_id'].'"/>Delete</button></center></td>";
echo "<td>Delete";
}
?>
<!--
<td><center><button type="submit" value="Edit">Edit</button></center></td>
<td><center><button type="submit" value="Delete">Delete</button></center></td>-->
</form></tr>
</tr>
</table>
---------------------delete.php---------------------
<?php
//print_r($_GET);
include 'dbfunction.php';
$con = getDbConnect();
if (!mysqli_connect_errno($con)) {
$queryStr = "SELECT * FROM crewlist";
}
$result = mysqli_query($con, $queryStr);
while ($row = mysqli_fetch_array($result)) {
if (!mysqli_connect_errno($con)) {
$sqliQueryStr = "DELETE FROM `posh`.`crewlist` WHERE crew_id = ". $row['crew_id'] . "";
}
mysqli_query($con, $sqliQueryStr);
header('Location: crewlisting.php');
mysqli_close($con);
//echo "user has been deleted";
}
?>
Delete function only works on first row of database. When I delete the rows that are not the first, it deletes the first row instead. Not sure where the error is when I've tried pretty much everything.

Answer 1

I think you are wrong on delete.php file. Put below code in your delete.php file.
---------------------delete.php---------------------
<?php
include 'dbfunction.php';
$con = getDbConnect();
if (!mysqli_connect_errno($con)) {
$sqliQueryStr = "DELETE FROM `posh`.`crewlist` WHERE crew_id = " . $_GET['id'];
mysqli_query($con, $sqliQueryStr);
}
header('Location: crewlisting.php');
mysqli_close($con);

Answer 2

Change your delete query as below
$sqliQueryStr = "DELETE FROM `posh`.`crewlist` WHERE crew_id = " . $_GET['id'] . "";