How do I send a POST request with PHP?

Actually I want to read the contents that come after the search query, when it is done. The problem is that the URL only accepts `POST` methods, and it does not take any action with `GET` method... I have to read all contents with the help of `domdocument` or `file_get_contents()`. Is there any method that will let me send parameters with `POST` method and then read the contents via `PHP`?