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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.
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