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PHP

PHP is a general-purpose scripting language used mainly for web development, maintained by The PHP Group and contributors. The PHP codebase is available under the Modified BSD License, also called PHP License version 4 (SPDX BSD-3-Clause).

Licensing at a Glance

  • Open source

  1. PHP is available under the Modified BSD License, also known as the PHP License version 4, whose SPDX identifier is BSD-3-Clause; it is a permissive licence without copyleft restrictions.[1]

  2. Earlier PHP versions were distributed under PHP License versions 2.01, 2.02, 3.0 and 3.01, and users may choose to use them under PHP License version 4.[2]

  3. Some files in PHP were contributed under other compatible licences, indicated in the licence comment block of each source file or in a separate licence file.[3]

  4. The PHP manual text and comments are covered by the Creative Commons Attribution 3.0 License, copyright the PHP Documentation Group.[4]

  5. The licence names The PHP Group and Contributors and Zend Technologies Ltd., a subsidiary of Perforce Software, as copyright holders.[5]

Products

References

  1. PHP: License Information · php.net · retrieved 2026-09-27
  2. PHP: License Information · php.net · retrieved 2026-09-27
  3. PHP: License Information · php.net · retrieved 2026-09-27
  4. PHP: License Information · php.net · retrieved 2026-09-27
  5. PHP: License Information · php.net · retrieved 2026-09-27
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