Test: callback vs. call_user

Test: callback vs. call_user_func

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Result: Discarded

The test labeled "call_user_func()" was the faster by 0.0062 seconds, (1.140% faster)

call_user_func() 100%

callback 98.86%

The call_user_func() test took 0.5382 seconds.
The callback test took 0.5444 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 137,214 loops for a total of 2,744,280 runs.

Line execution difference (0.000002) milliseconds.
Avg difference (0.310) milliseconds per 137,214 loops.
Total difference 6.21 milliseconds for 2,744,280 loops

The iteration variablity for Code 1 was (3.3760) milliseconds and Code 2 was (2.6018) 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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