3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test1($unset = false) { static $bar = 0; if ($unset) { unset($bar); // $bar is no longer linked to the static var, but // it will be on the next request! $bar = "unlinked"; } else { $bar++; } echo $bar; } test1(); test1(); test1(true); test1();

preferences:
44.92 ms | 402 KiB | 5 Q