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 (5) saved test runs, The test labeled "array_walk()" was (on average) the faster by 0.0053 seconds, (0.881% faster)

array_walk() 100%
array_walk_recursive() 99.119%

The array_walk() test took 0.5987 seconds.
The array_walk_recursive() test took 0.604 seconds.


Each test case ran 20 random code order iterations consisting of 143,151 loops for a total of 2,863,012 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.000) milliseconds per 143,151 loops.
  • Total difference 5.32 milliseconds for 2,863,012 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.


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

function foo_manual(&$v)
	if (is_array($v))
		array_walk($v, 'foo_manual');

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

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

function foo_auto(&$v)

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

Running: Linux (x86_64:1 GB) PHP (