Удаление запросов к учетным записям электронной почты из MariaDB не работает [дубликат] ⇐ Php

[Anonymous]

I'm writing a php and html program, which would carry out such email management functions as:

Add Email which would add info about first name, last name and email address of user into MariaDB, Send email which simply sends email to all users in the database and Remove Email. This would remove info about user's first name,last name and email address from the database.

The problem is that my "Remove email" option doesnt work, instead is shows the following error:





What I'm trying to achieve is to be able to select what email accounts to delete, like:





Here is my index.php file:



Источник: https://stackoverflow.com/questions/780 ... oesnt-work