Result
Unfortunately, no history for this test is available.
Code
The first test, "callback", was:
if ($GLOBALS['dummy'] === 41) $cb = 'do_something1'; else $cb = 'do_something2'; $cb();
The second test, "wrapped", was:
/* function do_something($type) { if ($type === 'do_something1') do_something1(); else do_something2(); } */ if ($GLOBALS['dummy'] == 41) $cb = 'do_something1'; else $cb = 'do_something2'; do_something($cb);