Historical ResultsBased on (1) saved test runs, The test labeled "with key" was (on average) the faster by 0.0176 seconds, (1.472% faster)
The with key test took 1.178 seconds.
The without key test took 1.1956 seconds.
Each test case ran 20 random code order iterations consisting of 275,533 loops for a total of 5,510,660 runs.
- Line execution difference (0.000003) milliseconds.
- Avg difference (0.000) milliseconds per 275,533 loops.
- Total difference 17.59 milliseconds for 5,510,660 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, "with key", was:
foreach ($GLOBALS['dummy'] as $k => $v) $v + array(1);
The second test, "without key", was:
foreach ($GLOBALS['dummy'] as $v) $v + array(1);