Ajax and returning image created by PHP GD

Question

I have a PHP script that generates an image with PHP GD. After it generates the image, it saves it, and send this output when called by Ajax:

imagejpeg($img_data         


        

Answer 1

base64 encode the image and return that, then you can do an <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIA......." />

On the PHP side

$image = base64_encode($imageGDRender);
echo json_encode(array('image'=>$image));

That will return your json back to your jquery

then on the ajax side

$.ajax({
    ...
    success: function(data) {
        var base64Image = data.image;
        ...now put it in your image
        $('#image').attr('src','data:image...'+base64Image);
    })....

Answer 2

Here is solution:

PHP code:

ob_start();
imagejpeg($im);
$outputBuffer = ob_get_clean();
$base64 = base64_encode($outputBuffer);
echo '<img src="data:image/jpeg;base64,'.$base64.'" />';

On user side (in JQuery):

success: function(data) {
        $('#somediv').append(data);
}

Answer 3

You should modify the header before doing the echo $img_data;

header("Content-Type: image/jpeg");
header("Content-Length: " .sizeof($img_data));