How to encode an image resource to base64?

Question

I was wondering if there\'s a way to encode an image to a base64 if it was a resource for example if I loaded an image using GD

    $image = imagecreatefromj         


        

Answer 1

I wrote a function for this. It also allows you change the output image format on the fly.

// Example
$im = imagecreate( 100, 100 );
imagecolorallocate( $im, 0, 0, 0 );
echo gdImgToHTML($im);

// Creates an HTML Img Tag with Base64 Image Data
function gdImgToHTML( $gdImg, $format='jpeg' ) {
    ob_start();

    if( $format == 'jpeg'){
        imagejpeg( $gdImg );
    }
    else
    if( $format == 'png' ){
        imagepng( $gdImg );
    }
    else
    if( $format == 'gif' )
    {
        imagegif( $gdImg );
    }

    $image_data = ob_get_contents();
    ob_end_clean();

    return "";
}