How to upload base64 encoded image to server - php

Question

I have jquery plugin which send image in base 64 encoded format which i want to store in server
here is what I've tried
$post = json_decode($_POST['file'], true); $data = $post['output']['image'];
$data = str_replace('data:image/png;base64,', '', $data);
$data = str_replace(' ', '+', $data);
$data = base64_decode($data);
require('/home/example/public_html/files/image/class.upload.php');
$code = md5(time());
$handle = new upload($data);
if ($handle->uploaded) {
$handle->file_new_name_body = "$code";
$handle->mime_check = true;
$handle->allowed = array('image/*');
$handle->image_convert = 'jpg';
$handle->jpeg_quality = 70;
$handle->image_resize = true;
$handle->image_x = 600;
$handle->image_ratio_y = 600;
$handle->process('/home/example/public_html/files/blog/img/');
if ($handle->processed) {
$file_name = $handle->file_dst_name;
} else {
echo "error";
}
}
My above code image upload class works on every image but i'm unable to uploade base 64 encoded image, how can i achieve that

Answer 1

The upload class you're using doesn't support feeding base64 directly into it. You're best off using this method to save a temporary version to your directory first, using the class to do what you need to do, then deleting it:
$data = str_replace('data:image/png;base64,', '', $data);
$data = str_replace(' ', '+', $data);
$data = base64_decode($data);
require('/home/example/public_html/files/image/class.upload.php');
$code = md5(time());
$write_dir = "/home/example/public_html/files/blog/img/";
$temp_code = "temp_".$code;
$ifp = fopen($write_dir.$temp_code, "wb");
fwrite($ifp, $data);
fclose($ifp);
$handle = new upload($write_dir.$temp_code);
if ($handle->uploaded) {
$handle->file_new_name_body = "$code";
$handle->mime_check = true;
$handle->allowed = array('image/*');
$handle->image_convert = 'jpg';
$handle->jpeg_quality = 70;
$handle->image_resize = true;
$handle->image_x = 600;
$handle->image_ratio_y = 600;
$handle->process($write_dir);
if ($handle->processed) {
$file_name = $handle->file_dst_name;
unlink($write_dir.$temp_code);
} else {
echo "error";
}
}