Test: foreach vs. for
Note that this isn't helpful unless you have ascending int keys.
Run this test again Return to test menuHistorical Results
Based on (1) saved test runs, The test labeled "for" was (on average) the faster by 0.0022 seconds, (0.477% faster)
The for test took 0.4657 seconds.
The foreach test took 0.468 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 108,625 loops for a total of 2,172,500 runs.
- Line execution difference (0.000001) milliseconds.
- Avg difference (0.000) milliseconds per 108,625 loops.
- Total difference 2.23 milliseconds for 2,172,500 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, "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;