if i buy new phone can i transfer remaining my warranty from old phone to new one

No. The warranty is specific to the phone itself. If you purchased an AppleCare+ plan on your iPhone 14, you will need to cancel it, then purchase a new plan for the new iPhone. If you didn't purchase an AppleCare+ plan, the standard one year warranty is not transferrable to a new iPhone either.

See this if you have an AppleCare+ Plan --> Cancel or change the payment method for your AppleCare plan - Apple Support

No, you can't transfer your AppleCare+ contract to a new iPhone (this option is only available if you sell it to someone else). You must cancel your contract (you'll be reimbursed for the remaining time on the contract) and take a new one for the iPhone 15.