Задайте вопросы о том, как захватывать или конвертировать веб-страницы или HTML into изображения, CSV, PDF или DOCX документы, а также о том, как конвертировать видео into анимированные GIF с использованием нашего API.
I'm using this service to generate a PDF from HTML of a contest entry form but now I've enhanced the submission process to allow submitting up to 10 entries at one time. As generating the PDFs in a loop takes roughly 2min (while the user sees a spinning GIF but can't do anything and just has to wait) I'd like to explore the callback functionality but can't find good examples. I know my PHP handler must be publicly accessible but would much appreciate some sample code.
Здравствуйте,
There is some indepth documentation on callback handlers and a working example in the демонстрация PHP.
С уважением