Image Steganography with PHP using LSB Algorithm
The Least Significant Bit (LSB) algorithm is one of the most popular and simplest image steganography techniques used for embedding secret messages in digital images. The algorithm works by modifying the least significant bit of each pixel of the cover image to represent a bit of the secret message. Since the least significant bit has the least impact on the image quality, the change is not noticeable to the human eye.
Source Code and Video Tutorial : https://youthsforum.com/2023/04/image-steganography-hiding-text-in-images-using-php/