A text message interface is developed in PHP. Where does the text message exist on the server? -Php Tutorial

A text message interface is developed in PHP. Where does the text message exist on the server? SESSION? When the client calls an API without a COOKIE, the SESSION cannot be used. how can this problem be saved? A text message interface is developed in PHP. Where does the text message exist on the server? SESSION? When the client calls an API without a COOKIE, the SESSION cannot be used. how can this problem be saved?

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A text message interface is developed in PHP. Where does the text message exist on the server? SESSION? When the client calls an API without a COOKIE, the SESSION cannot be used. how can this problem be saved?

Create tables:

Create table 'captcha 'if not exists {'id' INT, 'phone' VARCHAR (15), 'code' VARCHAR (15), 'status' ENUM ('normal ', 'verified '), 'expire 'datetime );

I don't know how to develop one. generally, it's done by people now (the most expensive price should be around 8 minutes) you can generate the token mode or write the file form for the non-cookie session of the client that calls the interface of another user.