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<h2 class="title">Introduction</h2>
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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.
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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 <strong class="classname">Counter</strong> class.
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