In order to be a qualified candidate for the PMP certification you must have experience leading and/or directing all aspects of a project(s). You also must have performed activities across all process groups for at least one of the projects you use for your experience. Please read the PMI handbook carefully as it clearly states the requirements:
Training for Project Management Professional (PMP)®, PMI Agile Certified Practitioner (PMI-ACP)®, and Certified Associate in Project Management (CAPM)®