$img = str_replace(array('data:image/png;base64','data:image/jpeg;base64','data:image/jpg;base64','data:image/gif;base64'), null, $img);
$img = base64_decode($img);
$imgurl = 'image_' . substr(md5($img), 0, 24) . mt_rand(0, 100000) . $type;

create_dir_functions($dir);

$dir[2] = $dir[1] . '/' . $imgurl;

file_put_contents( $cdir . $dir[2], $img);

return $dir[2];