Result: DiscardedThe test labeled "$k => $dummy" was the faster by 0.0303 seconds, (3.959% faster)
The $k => $dummy test took 0.7359 seconds.
The array_keys() test took 0.7662 seconds.
Each test case ran 20 random code order iterations consisting of 147,895 loops for a total of 2,957,900 runs.
- Line execution difference (0.000010) milliseconds.
- Avg difference (1.517) milliseconds per 147,895 loops.
- Total difference 30.33 milliseconds for 2,957,900 loops
The iteration variablity for Code 1 was (6.9540) milliseconds and Code 2 was (7.9083) milliseconds. The lower and the closer together there values are the more accurate the results are.
The first test, "$k => $dummy", was:
foreach ($GLOBALS['dummy'] as $k => $dummy) $k + 1;
The second test, "array_keys()", was:
foreach (array_keys($GLOBALS['dummy']) as $k) $k + 1;