Edit Database in PHP-Site - php

Question

I'm very new to php and databases. So I need you to help me out please.
I want to edit the data of my database online in my php site. But the form is empty and I don't know why.
I don't know if you need more information so this is the code of the table with the form. If you need more let me know.
<table>
<?php
$con=mysqli_connect("x","y","z","xyz");
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($con,"SELECT * FROM Transparente");
while($row = mysqli_fetch_array($result))
mysqli_close($con);
?>
<form method="post" action="edit_data.php">
<input type="text" name="id" value="<? echo "$row[id]"?>">
<tr>
<td>Firma</td>
<td>
<input type="text" name="name"
size="40" value="<? echo "$row[Name]"?>">
</td>
</tr>
<tr>
<td>Wer</td>
<td>
<input type="text" name="wer" size="40"
value="<? echo "$row[Wer]"?>">
</td>
</tr>
<tr>
<td>Erhalten</td>
<td>
<input type="text" name="erhalten" size="40"
value="<? echo "$row[Erhalten]"?>">
</td>
</tr>
<tr>
<td>Digital</td>
<td>
<input type="text" name="digital" size="40"
value="<? echo "$row[Digital]"?>">
</td>
</tr>
<tr>
<td>Betrag in Euro</td>
<td>
<input type="text" name="betrag" size="40"
value="<? echo "$row[Betrag]"?>">
</td>
</tr>
<tr>
<td>Bezahlt am</td>
<td>
<input type="text" name="bezahlt" size="40"
value="<? echo "$row[Bezahlt]"?>">
</td>
</tr>
<tr>
<td>Anmerkung</td>
<td>
<input type="text" name="anmerkung" size="40"
value="<? echo "$row[Anmerkung]"?>">
</td>
</tr>
<tr>
<td align="right">
<input type="submit"
name="submit value" value="Edit">
</td>
</tr>
</form>
</table>

Answer 1

Try below code
1)If data base contain more rows it shows multiple form
2)You need to show one form you need to restrict in query using where class
<?php
$con=mysqli_connect("x","y","z","xyz");
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($con,"SELECT * FROM Transparente");
while($row = mysqli_fetch_array($result))
{
?>
<table>
<form method="post" action="edit_data.php">
<input type="text" name="id" value="<?php echo $row['id'];?>">
<tr>
<td>Firma</td>
<td>
<input type="text" name="name"
size="40" value="<?php echo $row['Name'];?>">
</td>
</tr>
<tr>
<td>Wer</td>
<td>
<input type="text" name="wer" size="40"
value="<?php echo $row['Wer']?>">
</td>
</tr>
<tr>
<td>Erhalten</td>
<td>
<input type="text" name="erhalten" size="40"
value="<?php echo $row['Erhalten']?>">
</td>
</tr>
<tr>
<td>Digital</td>
<td>
<input type="text" name="digital" size="40"
value="<?php echo $row['Digital']?>">
</td>
</tr>
<tr>
<td>Betrag in Euro</td>
<td>
<input type="text" name="betrag" size="40"
value="<?php echo $row['Betrag']?>">
</td>
</tr>
<tr>
<td>Bezahlt am</td>
<td>
<input type="text" name="bezahlt" size="40"
value="<?php echo "$row[Bezahlt]"?>">
</td>
</tr>
<tr>
<td>Anmerkung</td>
<td>
<input type="text" name="anmerkung" size="40"
value="<?php echo $row['Anmerkung'];?>">
</td>
</tr>
<tr>
<td align="right">
<input type="submit"
name="submit value" value="Edit">
</td>
</tr>
</form>
</table>
<?php } ?>
Edit:
change query like below
$result = mysqli_query($con,"SELECT * FROM Transparente where id={$_REQUEST['id']}");

Answer 2

<table>
<?php
$con=mysqli_connect("x","y","z","xyz");
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($con,"SELECT * FROM Transparente");
while($row = mysqli_fetch_array($result))
?>
<form method="post" action="edit_data.php">
<input type="text" name="id" value="<? echo "$row[id]"?>">
<tr>
<td>Firma</td>
<td>
<input type="text" name="name"
size="40" value="<? echo "$row[Name]"?>">
</td>
</tr>
<tr>
<td>Wer</td>
<td>
<input type="text" name="wer" size="40"
value="<? echo "$row[Wer]"?>">
</td>
</tr>
<tr>
<td>Erhalten</td>
<td>
<input type="text" name="erhalten" size="40"
value="<? echo "$row[Erhalten]"?>">
</td>
</tr>
<tr>
<td>Digital</td>
<td>
<input type="text" name="digital" size="40"
value="<? echo "$row[Digital]"?>">
</td>
</tr>
<tr>
<td>Betrag in Euro</td>
<td>
<input type="text" name="betrag" size="40"
value="<? echo "$row[Betrag]"?>">
</td>
</tr>
<tr>
<td>Bezahlt am</td>
<td>
<input type="text" name="bezahlt" size="40"
value="<? echo "$row[Bezahlt]"?>">
</td>
</tr>
<tr>
<td>Anmerkung</td>
<td>
<input type="text" name="anmerkung" size="40"
value="<? echo "$row[Anmerkung]"?>">
</td>
</tr>
<tr>
<td align="right">
<input type="submit"
name="submit value" value="Edit">
</td>
</tr>
</form>
</table>
<?php mysqli_close($con);?>
// close connection at the end of the code

Answer 3

You are not opening the while loop.Try this it will show you the values in the form
<table>
<?php
$con=mysqli_connect("x","y","z","xyz");
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($con,"SELECT * FROM Transparente");
while($row = mysqli_fetch_array($result))
{
mysqli_close($con);
?>
<form method="post" action="edit_data.php">
<input type="text" name="id" value="<? echo "$row[id]"?>">
<tr>
<td>Firma</td>
<td>
<input type="text" name="name"
size="40" value="<? echo "$row[Name]"?>">
</td>
</tr>
<tr>
<td>Wer</td>
<td>
<input type="text" name="wer" size="40"
value="<? echo "$row[Wer]"?>">
</td>
</tr>
<tr>
<td>Erhalten</td>
<td>
<input type="text" name="erhalten" size="40"
value="<? echo "$row[Erhalten]"?>">
</td>
</tr>
<tr>
<td>Digital</td>
<td>
<input type="text" name="digital" size="40"
value="<? echo "$row[Digital]"?>">
</td>
</tr>
<tr>
<td>Betrag in Euro</td>
<td>
<input type="text" name="betrag" size="40"
value="<? echo "$row[Betrag]"?>">
</td>
</tr>
<tr>
<td>Bezahlt am</td>
<td>
<input type="text" name="bezahlt" size="40"
value="<? echo "$row[Bezahlt]"?>">
</td>
</tr>
<tr>
<td>Anmerkung</td>
<td>
<input type="text" name="anmerkung" size="40"
value="<? echo "$row[Anmerkung]"?>">
</td>
</tr>
<tr>
<td align="right">
<input type="submit"
name="submit value" value="Edit">
</td>
</tr>
</form>
</table>
<?php }?>