# Functions
LoadAvailablePHPExtensions locates available extensions and returns the list.
NewContributor creates a new Contributor instance.
PickWebDir will select the correct web directory to use.
SearchForWebApp looks to see if this application is a PHP web app.
Version returns the selected version of PHP using the following precedence:
1.
# Constants
Dependency in the buildplan indicates that this is a web app.
# Structs
Contributor represents a PHP contribution by the buildpack.
Metadata is used solely for providing `Identity()`.