How to make a purchase like on this site?

Question

PHP

Hello.
Can you please tell me how the purchase is implemented here using the link?
shopotam.ru/bylink
Or tell me where you can read ... Thanks in advance.

Answer 1

They just parse values ​​from a particular page. This is called parsing . Look it up on google:
Or the library is Simple HTML Dom and you can use it too. But look in the direction of regular expressions, because these functions are system functions, and this library must be connected, etc.