How to find specific text in an image?

Question

PHP

People send checks with payment, in which the last 4 digits are from the card 4394. These are usually jpg or png files with photos of the check or a scan.
Now we ourselves open each attached image and check if these numbers are in the check.
Goal: automate the process. The system itself should find the numbers 4394 on the attached images and, if there are matches, perform the function.
Question: is there any library or something similar that helps to find the text in the picture? Or to read articles where it is told about it? Preferably in plain language, for dummies)

Answer 1

I would refer to this.
https://cloud.google.com/vision/tesseract.projectnaptha.com
_

Answer 2

tesseract.projectnaptha.com jocr.sourceforge.net/index.html
antimatter15.com/ocrad.js/demo.html
Just
what you want to do on the backend