Result: DiscardedThe test labeled "non-referenced" was the faster by 0.0014 seconds, (0.164% faster)
The non-referenced test took 0.8803 seconds.
The referenced test took 0.8818 seconds.
Each test case ran 20 random code order iterations consisting of 229,919 loops for a total of 4,598,380 runs.
- Line execution difference (0.000000) milliseconds.
- Avg difference (0.072) milliseconds per 229,919 loops.
- Total difference 1.44 milliseconds for 4,598,380 loops
The iteration variablity for Code 1 was (1.1244) milliseconds and Code 2 was (0.6469) 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);