Please tell me how to implement this function: If the user xia dan of the mall has the same delivery address, a reminder will pop up and cannot be saved.-PHP Chinese Network Q&A

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Please tell me how to implement this function: If the user xia dan of the mall has the same delivery address, a reminder will pop up and cannot be saved.

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Flipped 2021-08-23 16:41:06

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逆旅行人2021-08-23 16:44:51 1 floor

Use ajax to obtain the filled-in data, pass it to the controller, query it, and then return the corresponding information to make a judgment

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reply Brother, can you write the specific code? I just started learning and I was really confused.

Flipped author 2021-08-23 16:46:27

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