Test: array_walk vs. array_walk_recursive
Does the recursive variant have any benefit over rolling our own recursion?
View test history (4) Run this test again Return to test menuResult: Discarded
The test labeled "array_walk()" was the faster by 0.0311 seconds, (6.046% faster)
The array_walk() test took 0.4839 seconds.
The array_walk_recursive() test took 0.515 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 126,505 loops for a total of 2,530,100 runs.
- Line execution difference (0.000012) milliseconds.
- Avg difference (1.557) milliseconds per 126,505 loops.
- Total difference 31.14 milliseconds for 2,530,100 loops
The iteration variablity for Code 1 was (1.7371) milliseconds and Code 2 was (3.6455) 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');