Picture base64 format conversion

    public function Base64EncodeImage ($ ImageFile) {// pictures base64 format conversion, image needs locally, have access, relative to the project path
         IF (file_exists ($ ImageFile) || is_file ($ ImageFile)) { 
            $ image_info = getimagesize ($ ImageFile); 
            $ the image_data = fread (the fopen ($ ImageFile, ' R & lt ' ), filesize ($ ImageFile)); 
            $ base64_image = ' Data: ' . $ image_info [ ' MIME ' ]. ' ; Base64, ' chunk_split (the base64_encode. ($ the image_data));
             return $ base64_image; 
        }else {
            return -100;
        }
    }