How save image from canvas tag to php server?

Question

I have a javascript code like this

var testCanvas = document.getElementById(\'canvas-1\');
var canvasData = testCanvas.toDataURL(\"image/png\");
var ajax = n         


        

Answer 1

According to a comment in the manual, to get the HTTP_RAW_POST_DATA, you need to do something like this:

The manual says this about the wrappers such as php://input:

In the case of POST requests, it is preferable to use php://input instead of $HTTP_RAW_POST_DATA as it does not depend on special php.ini directives.