Why is my insertion query executing twice every time the page refreshes?

Insertion Queries Repeatedly Executed

Problem:

On a game page where users play a game, an insertion query is executed to log data into a database. However, the query seems to be submitted twice every time the page is refreshed.

$insert_user_activity = mysql_query("INSERT INTO game_activity (user_id,user_full_name,game_id,game_name) 
    values ('$user_id','$full_name','$browser_id','$game_title')");

Explanation:

The problem lies in the front controller logic. The page containing the query is being invoked not only for legitimate requests but also for invalid ones. This is a typical issue when designing a front controller for a web application.

To prevent multiple insertions, the logic of the front controller must handle invalid requests differently to ensure that the application is not executed for such requests. Otherwise, numerous unnecessary insertions may occur when the site is launched.

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