how to delete mysql table row from mail inbox - php

Question

I want to delete mysql table row from mail inbox , Is it possible !, If yes how can i delete the table row in my server database from any mail inbox account, please tell me the solution
Table Structure:
id usrname password status usercat
1 xxxxxxx xxxxxxx new 1
2 uuuuuuu uuuuuuu new 5
$del_qry= mysql_query("DELETE FROM table_name WHERE some_column=some_value")
In my site after Registration, the registered person get alert mail and also site admin get registered user detail's mail. So if the admin want to delete the second user(username - uuuuuu) from his mail account.
How can i do this, Please tell me i am new here...

Answer 1

The email you send to the admin will have to contain a link like this:
http://www.example.org/admin/remove_account.php?id=123
Where 123 is the user that was registered and remove_account.php is the script that will be loaded when the link is clicked.
Within the script you would have something like this:
mysql_query("DELETE FROM table_name WHERE id=" . mysql_real_escape_string($_GET['id']));
CAUTION
A few words of caution. The above link should be protected by one of the following:
User & password protection (either using Apache or PHP)
Signature protection (example below)
The signature protection prevents tampering / forging link parameters by adding a signature. Works like this:
$secret = "some reasonably long string of random data";
$id = "123"; // like above, the user id
$sig = hash_hmac('sha1', $id, $secret);
$link = 'http://www.example.org/admin/remove_account.php?' . http_build_query(array(
'id' => $id,
'sig' => $sig,
));
To verify the signature:
$secret = "some reasonably long string of random data";
if (isset($_GET['id'], $_GET['sig'])) {
$calc_sig = hash_hmac('sha1', $_GET['id'], $secret);
if ($calc_sig === $_GET['sig']) {
// your delete query here
}
}
Please note that, although the link protects against someone trying to access your administrative script, if it falls in the wrong hands you're still pretty much screwed. Don't underestimate security :)

Answer 2

I think you must add a link of a page of your site in email of delete with respect of user list. and when user click on link it will redirect to particular page where it will get that user id from url of link and then you can perform delete action. It is necessary to redirect to site page from mail because in mail you can not direct connect with database.
thanks