Description:
------------
http://www.php.net/manual/en/function.unset.php#AEN183845

The documentation for unsetting static variables is very unclear and confusing due to it's contradictory nature.

It is stated that the variable is destroyed, yet the example shows that this clearly isn't the case.  Rather the variable is only temporarily destroyed, for the remainder of that function.

The example provided seems to demonstrate that unset has no effect, removing the unset command produces exactly the same output.

I believe changing the descriptive text and changing the example to something like the one below would make the behaviour far clearer.

Reproduce code:
---------------
<?php
function foo() {
    static $bar;
    $bar++;
    echo "Before unset: $bar\n";
    unset($bar);
    $bar = 23;
    echo "After unset: $bar\n";
}
foo();
foo();
foo();
?>

Before unset: 1
After unset: 23
Before unset: 2
After unset: 23
Before unset: 3
After unset: 23