Search similar Images in Google using Laravel file upload

Hi, I want to search similar images in google using laravel file upload. I want to get those images which are already existing in different websites or google images. I want to restrict my users from uploading already used images to my website. The website is related to search paper publication So this is client requirement. Please help and thank you in advance.

Flow of the functionality is below:

1. User will select a file to upload to website
2. the system will check in google if the same image is already used in another website
3. if the similar images were found, I need those in array form. So I can display the duplicate images
4. If duplication was not found, then file will be uploaded to the server.