I am in a great trouble on my database. I have 10 tables in my database. One is parent table (using primary key) and other nine tables are child (using foreign key) table. Now, I want to say that my parent table data is not be deleted if I do not delete data from the database, but child table data got auto deleted after input the data in my database prior around 7 days, if I do not delete data manually from database.
So, how it is being possible? I do not understand what is the reason for auto deleting from that php file, I do not make any wrong on it. I have a admin panel, but no body enter my admin panel without me. I do not use any auto delete function. Now what should I do? Please let me provide some solutions and suggestions. How can I protect my database?