static function StaticFields()
{
Timing::Start("Static field direct read");
for ($i = 0; $i < self::LOOP_COUNT; $i++) {
$_x = Z::$a;
}
Timing::Stop();
Timing::Start("Static field direct write");
for ($i = 0; $i < self::LOOP_COUNT; $i++) {
Z::$a = $_x;
}
Timing::Stop();
$_y = "a";
Timing::Start("Static field indirect read");
for ($i = 0; $i < self::LOOP_COUNT; $i++) {
$_x = Z::${$_y};
}
Timing::Stop();
$_y = "a";
Timing::Start("Static field indirect write");
for ($i = 0; $i < self::LOOP_COUNT; $i++) {
Z::${$_y} = $_x;
}
Timing::Stop();
}