License Class: PHP LicensesUsed primarily by the PHP group, the PHP license explicitly intends to encourage widespread use of the PHP projects.
Some additional facts regarding the license include:
- The Open Source Initiative (OSI) has approved this license as an Open Source license. Open Source approved licenses comply with the OSI criteria. Such criteria include provisions supporting both the free redistribution of aggregate and derived products, and the requirement that source code be made available with the distributions of aggregate and derivative products.
- The Free Software Foundation (FSF) has classified this license as a Free Software license. Free Software licenses meet the FSF's criteria for supporting the user's freedom to run, study,redistribute and improve the program.