Delete from database depending on button clicked - php

Question

I have a script that prints in the screen all the data of a table. Associated to each row of data, I have a delete button, and I would like that, when a button of any row is cliked, the row is deleted. To do so, I have got the following code:
$con = mysqli_connect("","","","");
$result = mysqli_query($con,"SELECT * FROM `clientes_pmt`");
while($row = mysqli_fetch_array($result)){
?> <button name="delete" value="<?php echo $row['id']; ?>" type="submit"><img src="paginas/borrar.jpg" /></button>
<a href="page<?php echo $row['nombre']; ?>">
<div><p><?php echo $row['nombre']; ?></p></div>
<div><p><?php echo $row['pais']; ?></p></div>
</a>
<section class="clearboth"></section><br><?php
}
if(isset($_POST['delete'])){
$id = $_POST['delete'];
$result = mysqli_query($con,"DELETE FROM `clientes_pmt` WHERE id = '$id'");
}
mysqli_close($con);
I receive no errors but the row is not being deleted.

Answer 1

Enclose the button inside a form element and set appropriate action and method attributes, something like:
<form action="/delete.php" method="POST">
<button ...> [your button]
</form>

Answer 2

You have to modify these line
$con = mysqli_connect("localhost","root","","YOUR DATABASE NAME");

Answer 3

To see the result you can put a header() to the end of this part of code:
if(isset($_POST['delete'])){
$id = $_POST['delete'];
$result = mysqli_query($con,"DELETE FROM `clientes_pmt` WHERE id = '$id'");
header('location:your_page_where_the_rows_are.php');
}

Answer 4

I think it may be because the $id was not getting added into the query.
Try bellow?
if(isset($_POST['delete'])){ $id = $_POST['delete']; $result = mysqli_query($con,"DELETE FROM clientes_pmt WHERE id = '".$id."'); }

Answer 5

Use Form tag and Header for redirect your page on same page.
Try This -
<?php
$con = mysqli_connect("","","","");
$result = mysqli_query($con,"SELECT * FROM `clientes_pmt`");
while($row = mysqli_fetch_array($result)){
?>
<form action="" method="post" >
<button name="delete" value="<?php echo $row['id']; ?>" type="submit"><img src="paginas/borrar.jpg" /></button>
</form>
<a href="page<?php echo $row['nombre']; ?>">
<div><p><?php echo $row['nombre']; ?></p></div>
<div><p><?php echo $row['pais']; ?></p></div>
</a>
<section class="clearboth"></section><br><?php
}
if(isset($_POST['delete'])){
$id = $_POST['delete'];
$result = mysqli_query($con,"DELETE FROM `clientes_pmt` WHERE id = '$id'");
header('location:'.$_SERVER['PHP_SELF']);
}
mysqli_close($con);
?>