Result: SavedThe test labeled "referenced" was the faster by 0.0028 seconds, (0.417% faster)
The referenced test took 0.6663 seconds.
The non-referenced test took 0.6691 seconds.
Each test case ran 20 random code order iterations consisting of 121,538 loops for a total of 2,430,760 runs.
- Line execution difference (0.000001) milliseconds.
- Avg difference (0.139) milliseconds per 121,538 loops.
- Total difference 2.79 milliseconds for 2,430,760 loops
The iteration variablity for Code 1 was (6.7740) milliseconds and Code 2 was (6.8662) milliseconds. The lower and the closer together there values are the more accurate the results are.
The first test, "non-referenced", was:
foreach ($GLOBALS['dummy'] as $k => $v) $v + 1; unset($v);
The second test, "referenced", was:
foreach ($GLOBALS['dummy'] as $k => &$v) $v + 1; unset($v);