Perfectly solve the problem of duplicate unique index in thinkphp

This article mainly introduces the perfect solution to the problem of thinkphp unique index duplication error. It has a certain reference value. Now I share it with you. Friends in need can refer to it.

For example, the following fields (g_check_id ): Unique index

If the same value appears when inserting data (g_check_id), the program itself will report an error.

So do something similar to the following:

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