PHP Version Parser: This class splits a php version number into its different components.

This class splits a php version number into its different components. The supported components are:

Major Version
Minor Version
Revision Number
Release Candidate Number
Beta Version Number
Alpha Version Number
Patch Level Number

By default, all of the above components are -1. If a component is not -1, that means there is a value for that component.

This class also contains a compare function for comparing two version numbers together. It compares the version number associated with this class and a version number that is passed in as an argument. If the passed in version number is newer than the version number associated with this class, 1 is returned, if the passed in version number is older than the version number associated with this class, -1 is returned, and if they are equal, 0 is returned.