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

Here is what I do save image from canvas via ajax. I use jQuery on client side

 jQuery.ajax({
     url: 'save.php',
     type: 'POST',
     data: {
         data: c.toDataURL('image/png')
     },
     complete: function(data, status)
     {
         if(status=='success')
         {
            alert('saved!');
         }
         alert('Error has been occurred');
     }

 });

php:

    $based64Image=substr($_POST['data'], strpos($_POST['data'], ',')+1);

    $image = imagecreatefromstring(base64_decode($based64Image));

    $fileName='';
    if($image != false)
    {
        $fileName=time().'.png';
        if(!imagepng($image, $fileName))
        {
//          fail;
        }
    }
    else
    {
//          fail;
    }

I hope this helps.