PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: array_walk vs. array_walk_recursive

Does the recursive variant have any benefit over rolling our own recursion?

Run this test again Return to test menu

Historical Results

Based on (2) saved test runs, The test labeled "array_walk()" was (on average) the faster by 0.0538 seconds, (8.323% faster)

array_walk() 100%
array_walk_recursive() 91.677%

The array_walk() test took 0.5922 seconds.
The array_walk_recursive() test took 0.6459 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 136,855 loops for a total of 2,737,090 runs.

  • Line execution difference (0.000020) milliseconds.
  • Avg difference (0.000) milliseconds per 136,855 loops.
  • Total difference 53.76 milliseconds for 2,737,090 loops

The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "array_walk()", was:

/*
function foo_manual(&$v)
{
	if (is_array($v))
		array_walk($v, 'foo_manual');
	else
		$v++;
}
*/

array_walk($GLOBALS['dummy'], 'foo_manual');

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

/*
function foo_auto(&$v)
{
	$v++;
}
*/

array_walk_recursive($GLOBALS['dummy'], 'foo_auto');

Running: Linux (x86_64:1 GB) PHP (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)