PHP -   Static Variables

PHP supports declaring local function variables as static. A static variable retains its value between function calls, but is still accessible only from within the function it is declared in. Static variables can be initialized; this initialization only takes place the first time the static declaration is executed. Static variables are often used as counters, as in this example:

function hitcount( )

 static $count = 0;



 if ($count == 0) {

 echo "This is the first access to this page";

 } else {

 echo "This page has been accessed $count times";

 }

 $count++;

}

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