How to convert base64 string into an audio mp3 file?

Question

I'm getting a base64 string from android side. I have to convert it into an audio file and have to save it into a folder. I thought I have to convert it first into byte array. Then after it, I have to convert it into a mp3 file. But don't know how. I have done work in base64 to image. If anyone know answer then please explain with an example. Thank You.

Answer 1

If the base64 encoded data already represents an MP3 file, it should be as easy as decoding the base64 data and storing it in a file:

file_put_contents('audio.mp3', base64_decode($data));