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PHP is a general-purpose scripting language that is especially suited to server-side web development, in which case PHP generally runs on a web server. Any PHP code in a requested file is executed by the PHP runtime, usually to create dynamic web page content or dynamic images used on websites or elsewhere. [283]
Open Source Initiative logo. Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, [1] design documents, [2] or content of the product. The open-source model is a decentralized software development model that encourages open collaboration.
Under Perens' definition, open source is a broad software license that makes source code available to the general public with relaxed or non-existent restrictions on the use and modification of the code. It is an explicit "feature" of open source that it puts very few restrictions on the use or distribution by any organization or user, in order ...
"Free and open-source software" (FOSS) is an umbrella term for software that is simultaneously considered both free software and open-source software. The precise definition of the terms "free software" and "open-source software" applies them to any software distributed under terms that allow users to use, modify, and redistribute said software in any manner they see fit, without requiring ...
The open-source-software movement is a movement that supports the use of open-source licenses for some or all software, as part of the broader notion of open collaboration. [1] The open-source movement was started to spread the concept/idea of open-source software . Programmers who support the open-source-movement philosophy contribute to the ...
Free and open-source software ( FOSS) is software that is distributed in a manner that allows its users to run the software for any purpose, to redistribute copies of it, and to examine, study, and modify, the source code. FOSS is also a loosely associated movement of multiple organizations, foundations, communities and individuals who share ...
The Open Source Definition (OSD) is a document published by the Open Source Initiative. Derived from Bruce Perens ' Debian Free Software Guidelines, the definition is the most common standard for open-source software. The definition has ten criteria, such as requiring freely accessed source code and granting the open-source rights to everyone ...
PHP generally follows C syntax, with exceptions and enhancements for its main use in web development, which makes heavy use of string manipulation. PHP variables must be prefixed by " $ ". This allows PHP to perform string interpolation in double quoted strings, where backslash is supported as an escape character.