How do I edit a specific row in SQL using PHP - php

Question

I am fairly new to PHP and SQL.
I want to be able to assign a task to a certain user and the update that row in the database with the user's name assigned to that task.
Here is my code:
<table border="0" width="1100px" style= "font-size: 12px" >
<thead>
<tr valign="top" align="left">
<th height="20"></th>
<th height="20">Customer</th>
<th>Vehicle</th>
<th>Appt Time</th>
<th>Notes</th>
<th>Assign</th>
<th>Action</th>
<tr><td valign="top" colspan="6"><hr><br></td></tr>
</tr>
</thead>
<tbody>
<?php
while( $row = mysql_fetch_assoc( $result ) ){
echo
"<tr valign='center'>
<td width='50'><b>{$row['id']}</td>
<td width='220' height='70'><b>{$row['firstname']}
</td>
<td width='240'><b>{$row['car']}</b> <br>{$row['reg']}</td>
<td width='170'>Monday<br>24 September<br>17:00</td>
<td width='240'>{$row['notes']}<br><b>Status:</td>
<td width='240'>
<form action='bookings.php' method='post'>
<select style='width:90px' class='reg' name='assign'required>
<option value=''></option>
<option value='User1'>User1</option>
<option value='User2'>User2</option>
<option value='User3'>User3</option>
<option value='User4'>User4</option>
<option value='User5'>User5</option>
</select><input type='submit' value='>' class='assignButton'/></form>
</td><td>
<button class='myButton'>Edit</button>
</td>
<tr><td colspan='6'><hr class='hrTitle'></td></tr>
</tr>\n";
}
?>
</tbody>
</table>
As you can see, I have a number of users that can be selected, I want to be able to assign that task to a user from the select list.
Any help is much appreciated.

Answer 1

Try the following steps.
Give a name to your submit button.
<input type='submit' value='>' name='submit' class='assignButton'>
Add a hidden input field to your form. Give it the value of the id of the current row. Give it a name. I chose id.
This is very important so you can know which customer to edit. Please double check the value that you will set. From your code, I see it is $row['id'].
<input type="hidden" name="id" value='$row["id"]''>
In your PHP file bookings.php (assuming you have a connection to your database), process the submitted form.
if(isset($_POST["submit"])){ //checks if the form was submitted
$id = $_POST["id"]; //id of the customer
$assign = $_POST["assign"]; //your selected value
$query = "UPDATE table SET columnToModify = '$assign' WHERE id = '$id'";
$result = $connection->query($query); //run the query
}
Hope it helps.