Test: foreach vs. for
Note that this isn't helpful unless you have ascending int keys.
Run this test again Return to test menuResult: Discarded
The test labeled "foreach" was the faster by 0.0206 seconds, (3.887% faster)
The foreach test took 0.5084 seconds.
The for test took 0.529 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 140,383 loops for a total of 2,807,660 runs.
- Line execution difference (0.000007) milliseconds.
- Avg difference (1.028) milliseconds per 140,383 loops.
- Total difference 20.56 milliseconds for 2,807,660 loops
The iteration variablity for Code 1 was (0.5063) milliseconds and Code 2 was (1.1330) 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;