Result: DiscardedThe test labeled "non-referenced" was the faster by 0.0035 seconds, (0.485% faster)
The non-referenced test took 0.718 seconds.
The referenced test took 0.7215 seconds.
Each test case ran 20 random code order iterations consisting of 182,897 loops for a total of 3,657,940 runs.
- Line execution difference (0.000001) milliseconds.
- Avg difference (0.175) milliseconds per 182,897 loops.
- Total difference 3.50 milliseconds for 3,657,940 loops
The iteration variablity for Code 1 was (3.8279) milliseconds and Code 2 was (3.3262) 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) $v++; unset($v);
The second test, "referenced", was:
foreach ($GLOBALS['dummy'] as $k => &$v) $v++; unset($v);