PHP may mean:

• PHP, an open source programming language
• Pizza Hut Park, home venue for soccer team FC Dallas
• Parallel History Project
• Percutaneous hepatic perfusion, a regionalized cancer treatment
• Penultimate Hop Popping, a function of certain routers in MPLS computer networks
• Partial hospitalization program, a program used to treat mental illness and substance abuse
• Philippine peso (via ISO 4217 code), of the official currency of the Philippines
• Pigeonhole principle, also known as Dirichlet's box (or drawer) principle

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