Test: callback vs. call_user

Test: callback vs. call_user_func

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Result: Saved

The test labeled "callback" was the faster by 0.0047 seconds, (0.517% faster)

callback 100%

call_user_func() 99.483%

The callback test took 0.9121 seconds.
The call_user_func() test took 0.9168 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 240,533 loops for a total of 4,810,660 runs.

Line execution difference (0.000001) milliseconds.
Avg difference (0.237) milliseconds per 240,533 loops.
Total difference 4.74 milliseconds for 4,810,660 loops

The iteration variablity for Code 1 was (1.5833) milliseconds and Code 2 was (1.5899) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "callback", was:

/*
function do_something($i)
{
	for ($i = 0; $i < 20; $i++)
		$GLOBALS['dummy'] + $i;
}
*/

$cb = 'do_something';
$cb(74);

The second test, "call_user_func()", was:

/*
function do_something($i)
{
	for ($i = 0; $i < 20; $i++)
		$GLOBALS['dummy'] + $i;
}
*/

$cb = 'do_something';
call_user_func($cb, 74);

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