Introduction

The “counter” extension provides any number of
counters to PHP code using it which reset at times determined by
the caller.

There are three interfaces to “counter”: basic,
extended, and objective. The basic interface provides a single
counter controlled by INI settings and function calls. The extended
interface provides an arbitrary number of named counter resources
which may optionally persist beyond the lifetime of a single PHP
request. The objective interface combines both the basic and
extended interfaces into a Counter class.