Php online cinema selection API

What is the online ticket booking interface for cinemas? If I develop my own project, I want to negotiate with the cinema to obtain the database information or how to do it? Does the cinema ticketing system development company have such interfaces? There are many ticketing systems across the country selecting seats online. how do they do this! It is impossible to negotiate with each cinema for separate development! How did Baidu Meituan, a time-frame network, do! Are there any ready-made api calls? Thank you for your help! Php

What is the online ticket booking interface for cinemas?
If I develop my own project, I want to negotiate with the cinema to obtain the database information or how to do it?
Does the cinema ticketing system development company have such interfaces?
There are many ticketing systems across the country selecting seats online. how do they do this! It is impossible to negotiate with each cinema for separate development! How did Baidu Meituan, a time-frame network, do! Are there any ready-made api calls?
Thank you for your help!