Eventviva\ImageResize::resizeToHeight PHP Method

    public function resizeToHeight($height, $allow_enlarge = false)
    {
        $ratio = $height / $this->getSourceHeight();
        $width = $this->getSourceWidth() * $ratio;
        $this->resize($width, $height, $allow_enlarge);
        return $this;
    }

 public function postImage(Request $request)
 {
     $validator = Validator::make($request->all(), ['height' => 'integer', 'width' => 'integer', 'image_file' => 'required|image|mimes:png,jpg,jpeg,gif,bmp']);
     if ($validator->fails()) {
         return redirect('/')->withErrors($validator)->withInput();
     }
     // if pass validation
     $image_name = $request->file('image_file')->getClientOriginalName();
     $image_extension = $request->file('image_file')->getClientOriginalExtension();
     $image_new_name = md5(microtime(true));
     $temp_file = base_path() . '/public/images/upload/' . strtolower($image_new_name . '_temp.' . $image_extension);
     $request->file('image_file')->move(base_path() . '/public/images/upload/', strtolower($image_new_name . '_temp.' . $image_extension));
     $origin_size = getimagesize($temp_file);
     $origin_width = $origin_size[0];
     $origin_height = $origin_size[1];
     // resize
     $image_resize = new ImageResize($temp_file);
     if (trim($request->get('height')) != "") {
         $height = $request->get('height');
     } else {
         $height = 0;
     }
     if (trim($request->get('width')) != "") {
         $width = $request->get('width');
     } else {
         $width = 0;
     }
     if ($width > 0 && $height > 0) {
         $image_resize->resize($width, $height);
     } else {
         if ($width == 0 && $height > 0) {
             $image_resize->resizeToHeight($height);
         } else {
             if ($width > 0 && $height == 0) {
                 $image_resize->resizeToWidth($width);
             }
         }
     }
     $image_resize->save(base_path() . '/public/images/upload/' . $image_new_name . '.' . $image_extension);
     $image_location = '/images/upload/' . $image_new_name . '.' . $image_extension;
     File::delete($temp_file);
     $image_data = array('image_name' => $image_name, 'image_extension' => $image_extension, 'image_location' => $image_location, 'origin_height' => $origin_height, 'origin_width' => $origin_width, 'height' => $height, 'width' => $width);
     $this->image_gestion->saveImage($image_data);
     return redirect('/')->with('message', 'Successfully upload image!');
 }