Test: foreach vs. for

Note that this isn't helpful unless you have ascending int keys.

View test history (2) Run this test again Return to test menu

Result: Discarded

The test labeled "foreach" was the faster by 0.0201 seconds, (3.279% faster)

foreach 100%

for 96.721%

The foreach test took 0.5932 seconds.
The for test took 0.6133 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 139,056 loops for a total of 2,781,120 runs.

Line execution difference (0.000007) milliseconds.
Avg difference (1.005) milliseconds per 139,056 loops.
Total difference 20.11 milliseconds for 2,781,120 loops

The iteration variablity for Code 1 was (3.7675) milliseconds and Code 2 was (3.4948) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "foreach", was:

foreach ($GLOBALS['dummy'] as $v)
	$v[0] + 1;

The second test, "for", was:

for ($k = 0, $n = count($GLOBALS['dummy']); $k < $n; $k++)
	$GLOBALS['dummy'][$k][0] + 1;

PHP Benchmarks