No. It'll either help you more or hinder you more.
Make it a nonfactor by not putting one on there. They'll validate your merits without doing that. It's okay to put one on a portfolio - HR and future bosses don't look at the portfolio first. They'll do that if your resume is up to snuff.
These are all great advices. I started with php and I can say I'm almost a master at. I've build a social network platform with it and solved many problems with it. Now I want to take it to an all new level and want to convert all my code to ruby format. These tips and advices will help me a lot thanks!