Have you done integrations with 1C?

Yes, I have experience integrating with 1C. Usually, integration with 1C in PHP projects is implemented through data exchange in XML or JSON format via HTTP(S) or through file exchange.

Main approaches:

• Using 1C web services (SOAP or REST API), which the PHP client accesses to send or receive data.
• Processing uploads and downloads in XML format, which 1C generates or accepts, with subsequent parsing and file creation on the PHP side.
• Setting up exchange via the COM interface (on Windows servers), if deeper integration is required.

Example of a simple request to a 1C web service in PHP using SOAP:

$client = new SoapClient('http://1c-server/soap/wsdl');
$params = ['param1' => 'value1'];
$response = $client->SomeMethod($params);
print_r($response);

An important aspect is agreeing on data formats and exchange protocols, as well as ensuring the security and reliability of data transfer between systems.