Result: DiscardedThe test labeled "non-referenced" was the faster by 0.1009 seconds, (8.223% faster)
The non-referenced test took 1.126 seconds.
The referenced test took 1.2269 seconds.
Each test case ran 20 random code order iterations consisting of 279,620 loops for a total of 5,592,400 runs.
- Line execution difference (0.000018) milliseconds.
- Avg difference (5.044) milliseconds per 279,620 loops.
- Total difference 100.88 milliseconds for 5,592,400 loops
The iteration variablity for Code 1 was (6.0546) milliseconds and Code 2 was (11.8996) 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);