Good Speech Recognition API for PHP

I am working on a project (see here: and I am using the WebKit SpeechRecognition API, but it isn’t supported on Safari (only Google Chrome, Opera, Edge and a few others). Does anyone know of a more flexible API I could use that would work on more browsers? Or a service? I am coding with HTML, PHP and Javascript. I am not sure if Python is an option, but if I can get it into the PHP, then maybe?

Any help is appreciated in advance,