Hi, What is the meaning of "open source" in simple terms? Why is PHP and MySQL known as open source? Regards Mellisa
Open Source is defined as that technology whose source is available for everyone to see and change according to their needs. That said, the distribution of the changed application will depend on the license and that doesn't affect it being called open source/. PHP and MySQL are called open source because, the source of their interpreters is available for everyone.
An easier suggested definition is just that, the native source code used to write the applications [is] open for all to see.