Deleting from table using drop down list - php

Question

I have a problem with deleting from mySQL table. I'm using drop down list to select which name (id) I need to delete. Please help.
<h1>Delete product</h1>
<form method="post" action = "Delete.php">
<div class="Delete">
<select>
<?php
require('connect.php');
$query = mysql_query("SELECT name FROM `products`");
$id = mysql_query("SELECT id FROM `products`");
while($row=mysql_fetch_array($query)){
echo "<option value='". $row = $_POST['id']."'>".$row['name'].'</option>';
}
?>
</select>
<input type="submit" name="" value="Delete">
</form>
</div>
And this is script. It makes error on line 10 - if(isset($_POST['id'])){
<?php
if($_SERVER["REQUEST_METHOD"] == "POST"){
require('connect.php');
$id = mysql_query("SELECT id FROM `products`");
if(isset($_POST['id'])){
$id = mysql_real_escape_string($_POST['id']);
$query2 = "DELETE FROM `products` WHERE id = '$id'";
$result=mysql_query($query2);
if($result){
header("Location: tools.php");
exit;
}
else{
echo"ERROR";
}
}
else{
echo"Bad ID";
}
}
?>

Answer 1

Try something like this
//Give select a name so delete.php can hook into it
<select name="product_id">
<?php
require('connect.php');
//Merge your 2 queries into one
$query = mysql_query("SELECT id, name FROM products");
//Fix value fetching in your while loop
while($row=mysql_fetch_array($query)){
echo "<option value='". $row['id']."'>".$row['name'].'</option>';
}
?>
</select>
Then in your submit script
<?php
if($_SERVER["REQUEST_METHOD"] == "POST"){
require('connect.php');
//Look for select name
if(isset($_POST['product_id'])){
//Get ID from select value
$id = mysql_real_escape_string($_POST['product_id']);
$query = "DELETE FROM products WHERE id = '$id'";
$result = mysql_query($query);
if($result){
header("Location: tools.php");
exit;
}
else{
echo"ERROR";
}
}
else{
echo"Bad ID";
}
}
?>
I havnt tested this but with minor tweaking if any, it should now work for you.
What i have done
Given your a name so it can be picked up by delete.php
Merged your product name, id fetch queries into 1 query
Killed off that $row = $_POST['id'] statement :S
In delete.php checked for the select name (given in bullet 2)
Clean up id depeneding on selected value
Ran delete query
Hope this helps