How do I upload a blob image from File Chooser to php $_Get?

Say I use the File Chooser and through "FileURLAt(0)", retrieved the blob which is basically a string of text.

I can get the Sprite to Load from URL sure.

Now how do I either:

1: Upload the Image from the Blob URL itself through to a PHP script using ONLY $_Get[] [meaning the image will have to be encoded somehow from construct 2 into a string that can be converted back into an image.]

2: Upload the Image loaded into the Sprite to the PHP Script again using only $_Get[].

Thanks !

maybe this can help...

[Behavior] Extract Sprite to base64 string

[Behavior] Inject base64 string as Sprite Image

It did help, thank you very much.