thinkphp How to prevent users from being unblocked or intentionally refreshed in a way that causes a single piece of data to be added multiple times

When I add data, many times the page has been refreshed, resulting in a number of days to repeat multiple additions

The pit has the user network bad time will read the bar and then the user will refresh the tragedy happened

How do I stop this kind of thing?

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When I add data, many times the page has been refreshed, resulting in a number of days to repeat multiple additions

The pit has the user network bad time will read the bar and then the user will refresh the tragedy happened

How do I stop this kind of thing?

The use of session,session is the server-side data, as long as the planting no longer refresh its value is not changed, it is possible to use this to prevent users from repeating the data submission

Your problem is actually to prevent the form to repeat the problem, you can use to generate a token in the session, also put a copy in the form, and then verify the table only son come over the token, and clear the session

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