How to delete multiple rows from mysql database with checkbox using PHP?

Question

I try to delete my data in \"admin\" database, but the delete button does not function.

This is my top part

Answer 1

$sql = "SELECT * FROM blacklist";
$result = $link->query($sql);
$count=mysqli_num_rows($result);

if ($result->num_rows > 0) {
 while($row = $result->fetch_assoc()) 
{
echo "";
echo "";
echo    "";
echo    "";
echo    "";
echo    "";
echo "";
echo "
";
echo    "
" . "ID: " . $row["id"]."
" . " Dial Target: " . $row["dial_target"]."
" . " Destination: " . $row["pozn"]."
" . " Date: " . $row["block_date"] . "
" . "
" . "
" . "" ."
" . "
" . "
"; 
echo "
";
}
}
else
{
 echo "0 results";
}


if(isset($_POST['Delete']))
{
for($i=0;$i<$count;$i++)
{
$del_id = $checkbox[$i];
 $del = "DELETE FROM blacklist WHERE Delete='$del_id'";
$result = $link->query($del);
}
if($result)
{
echo "";
}
}