I am new to web development. I have experience with raw HTML (using notepad). But I am planning to make a website for my final year project. I had previously asked a question on
I'm afraid this question is too subjective. Many IDE/editors have integrated support for PHP/HTML, since it's very common to embed PHP code in HTML.
This article may be helpful.
http://www.ibm.com/developerworks/opensource/library/os-php-ide/index.html