Including a new language PHP

[Priyadarshan2000]

As NeoAlgo has such a diverse database of algorithms along with different languages. I want to add a new language PHP to it. . I am learning PHP and could help in contributing to the algorithms in PHP. This way the diversity of the database would increase.
I am suggesting adding a new folder of PHP in the repository to which I could contribute. @TesseractCoding I am a GSSoC'21 participant and I think this is an interesting PHP in the repository Kindly allow me to work on this issue and contribute to this project.