Hello,
I have worked on such HTML text editors before, so I have the necessary experience. I provided features like font type, size, bold, italic, underline, alignment, lists, etc.
There won't be any need for PHP for this. HTML, JS and CSS will suffice.
I'm looking forward to hear from you! As soon as I receive the exact project requirements I should be able to finish it in 1 or 2 days.