Integrate PayPal Advanced Checkout into Vue-PHP Project

I need a PayPal Advanced checkout integration into my Vue and PHP project. The primary functionality required is for processing one-time payments.

Key Features:
- Implementation of PayPal Advanced checkout for one-time payments
- Enabling guest checkout only, no user accounts needed
- Simple and seamless user experience

Technical Requirements:
- Proficient in Vue.js and PHP
- Prior experience with PayPal Advanced Checkout integration is a plus
- Ability to ensure a secure and efficient checkout process

Note: I do not currently have a PayPal business account set up. Please provide guidance on how to proceed with this.